Geomorphology ONE-LINERS

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 Geomorphology ONE-LINERS

MCQ 1:
What is the approximate age of the Universe?
(a) 4.5 billion years
(b) 8.2 billion years
(c) 13.7 billion years
(d) 20 billion years

Answer: (c) 13.7 billion years

MCQ 2:
What is the name of the leftover energy from the early hot Universe?
(a) Solar wind
(b) Cosmic microwave background radiation
(c) Stellar fusion energy
(d) Galactic remnants

Answer: (b) Cosmic microwave background radiation

MCQ 3:
Which term is used to describe the current rate of the Universe’s expansion?
(a) Cosmic Constant
(b) Doppler Rate
(c) Hubble Constant
(d) Expansion Ratio

Answer: (c) Hubble Constant

MCQ 4:
What type of galaxy is the Milky Way?
(a) Elliptical galaxy
(b) Irregular galaxy
(c) Barred spiral galaxy
(d) Normal spiral galaxy

Answer: (c) Barred spiral galaxy

MCQ 5:
Which galaxy is the closest large galaxy to the Milky Way?
(a) Virgo Galaxy
(b) Andromeda Galaxy
(c) Triangulum Galaxy
(d) Sagittarius Galaxy

Answer: (b) Andromeda Galaxy

MCQ 6:
What is the Doppler effect for light called when a light source moves away from the observer?
(a) Blue shift
(b) Red shift

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 Geomorphology ONE-LINERS

(c) Cosmic shift

(d) Velocity shift

Answer: (b) Red shift

MCQ 7:
Which of the following is the brightest star as seen from Earth?
(a) Proxima Centauri
(b) Polaris
(c) Sirius
(d) Alpha Centauri

Answer: (c) Sirius

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
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 Geomorphology ONE-LINERS

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
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 Geomorphology ONE-LINERS

MCQ 1:
What is the approximate composition of the Sun's mass?
(a) 90% hydrogen, 10% helium
(b) 50% hydrogen, 40% helium, 10% other elements
(c) 70% hydrogen, 28% helium, 2% other elements
(d) 80% helium, 20% other elements

Answer: (c) 70% hydrogen, 28% helium, 2% other elements

MCQ 2:
Which layer of the Sun is responsible for the visible light we see?
(a) Chromosphere
(b) Corona
(c) Photosphere
(d) Core

Answer: (c) Photosphere

MCQ 3:
Which planet is known as the "Red Planet"?
(a) Venus
(b) Mars
(c) Jupiter
(d) Saturn

Answer: (b) Mars

MCQ 4:
What distinguishes a planet from a dwarf planet like Pluto?
(a) Presence of rings
(b) Ability to generate its own light
(c) Cleared the neighborhood around its orbit
(d) Larger size than other celestial bodies

Answer: (c) Cleared the neighborhood around its orbit

MCQ 5:
Which layer of the Sun is visible during a total solar eclipse?
(a) Core
(b) Photosphere
(c) Corona
(d) Radiative Zone

Answer: (c) Corona

MCQ 6:
Which planet is the warmest and brightest in the solar system?
(a) Mercury
(b) Venus

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
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 Geomorphology ONE-LINERS

(c) Mars
(d) Jupiter

Answer: (b) Venus

MCQ 7:
Where are asteroids primarily found in the solar system?
(a) Between Venus and Earth
(b) Between Mars and Jupiter
(c) Beyond the Kuiper Belt
(d) Orbiting the Sun near Mercury

Answer: (b) Between Mars and Jupiter

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
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 Geomorphology ONE-LINERS

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
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 Geomorphology ONE-LINERS

MCQ 1:
What is the primary reason Venus experiences extremely high temperatures?
(a) Its proximity to the Sun
(b) Volcanic activity
(c) Intense greenhouse effect
(d) Lack of atmosphere

Answer: (c) Intense greenhouse effect

MCQ 2:
What distinguishes a meteorite from a meteor?
(a) A meteorite burns up in Earth's atmosphere, while a meteor strikes the ground
(b) A meteorite originates from comets, while a meteor originates from asteroids
(c) A meteorite is a meteoroid that survives passage through Earth's atmosphere and reaches the ground
(d) A meteorite is smaller than a meteor

Answer: (c) A meteorite is a meteoroid that survives passage through Earth's atmosphere and reaches the
ground

MCQ 3:
Where do most comets that orbit the Sun originate from?
(a) Asteroid Belt
(b) Oort Cloud and Kuiper Belt
(c) Solar Core
(d) Venusian Orbit

Answer: (b) Oort Cloud and Kuiper Belt

MCQ 4:
What is the Goldilocks Zone in astronomy?
(a) The region of a planet where sunlight is most abundant
(b) A zone around a star where the temperature is suitable for liquid water to exist
(c) The part of a galaxy that supports the formation of new stars
(d) The boundary between terrestrial and gas giant planets

Answer: (b) A zone around a star where the temperature is suitable for liquid water to exist

MCQ 5:
What is the duration of the Sun’s magnetic cycle, during which its poles flip?
(a) 5 years
(b) 7 years
(c) 11 years
(d) 20 years

Answer: (c) 11 years

MCQ 6:
What causes auroras on Earth?
(a) Volcanic eruptions

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 Geomorphology ONE-LINERS

(b) Meteor showers

(c) Interaction of solar winds with Earth’s magnetic field
(d) Reflection of sunlight by the atmosphere

Answer: (c) Interaction of solar winds with Earth’s magnetic field

MCQ 7:
What are short-period comets, such as Halley’s Comet, typically associated with?
(a) The Asteroid Belt
(b) The Kuiper Belt
(c) The Oort Cloud
(d) Interstellar Space

Answer: (b) The Kuiper Belt

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
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 Geomorphology ONE-LINERS

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
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 Geomorphology ONE-LINERS

MCQ 1:
What is the mean radius of Earth?
(a) 5,971.0 km
(b) 6,371.0 km
(c) 7,371.0 km
(d) 8,371.0 km

Answer: (b) 6,371.0 km

MCQ 2:
Which mountain’s summit is the farthest point from Earth’s center?
(a) Mount Everest
(b) Mount Kilimanjaro
(c) Chimborazo
(d) Mount Denali

Answer: (c) Chimborazo

MCQ 3:
Which of the following is the only latitude that is a great circle?
(a) Tropic of Cancer
(b) Equator
(c) Tropic of Capricorn
(d) Arctic Circle

Answer: (b) Equator

MCQ 4:
What is the time taken by Earth to rotate 1 degree?
(a) 1 minute
(b) 2 minutes
(c) 4 minutes
(d) 6 minutes

Answer: (c) 4 minutes

MCQ 5:
Which country lies on both the equator and a tropic?
(a) India
(b) Brazil
(c) Australia
(d) Egypt

Answer: (b) Brazil

MCQ 6:
What happens when crossing the International Date Line (IDL) moving westward?
(a) Gain a day
(b) Lose a day

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
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 Geomorphology ONE-LINERS

(c) No change
(d) Lose 4 hours

Answer: (b) Lose a day

MCQ 7:
Why do we experience seasons on Earth?
(a) Earth's elliptical orbit
(b) Earth's rotation on its axis
(c) Earth's tilted axis and revolution
(d) Changes in the Sun's temperature

Answer: (c) Earth's tilted axis and revolution

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
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 Geomorphology ONE-LINERS

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
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 Geomorphology ONE-LINERS

MCQ 1:
What is the longest day in the Northern Hemisphere called, and when does it occur?
(a) Winter Solstice, 22nd December
(b) Equinox, 21st March
(c) Summer Solstice, 21st June
(d) Polar Night, 23rd September

Answer: (c) Summer Solstice, 21st June

MCQ 2:
What is the phenomenon where the Earth experiences equal day and night called, and when does it
occur?
(a) Solstice; 21st June and 22nd December
(b) Equinox; 21st March and 23rd September
(c) Polar Night; December
(d) Midnight Sun; June

Answer: (b) Equinox; 21st March and 23rd September

MCQ 3:
What term describes the phenomenon of continuous daylight in regions within the Antarctic Circle
during summer?
(a) Equinox
(b) Polar Day (Midnight Sun)
(c) Polar Night
(d) Solar Eclipse

Answer: (b) Polar Day (Midnight Sun)

MCQ 4:
In India, what is the northward migration of the Sun called, which occurs between December 22 and
June 21?
(a) Equinox
(b) Dakshinayan
(c) Uttarayan
(d) Solstice

Answer: (c) Uttarayan

MCQ 5:
Why do eclipses not occur every new moon or full moon?
(a) The Sun’s light is too bright
(b) The Earth’s orbit around the Sun and the Moon’s orbit around Earth are not in the same plane
(c) The Moon is too small to block the Sun
(d) The Earth’s tilt prevents alignments

Answer: (b) The Earth’s orbit around the Sun and the Moon’s orbit around Earth are not in the same plane

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 Geomorphology ONE-LINERS

MCQ 6:
What is the thickness of the oceanic crust compared to the continental crust?
(a) Oceanic crust is thicker, 70-100 km
(b) Continental crust is thinner, 5-30 km
(c) Oceanic crust is thinner, 5-30 km, while continental crust is 50-70 km
(d) Both crusts are the same thickness

Answer: (c) Oceanic crust is thinner, 5-30 km, while continental crust is 50-70 km

MCQ 7:
Which type of rocks form the outer covering of Earth’s crust?
(a) Igneous rocks
(b) Sedimentary rocks
(c) Metamorphic rocks
(d) Basaltic rocks

Answer: (b) Sedimentary rocks

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
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 Geomorphology ONE-LINERS

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
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 Geomorphology ONE-LINERS

MCQ 1:
What is the average density of the Earth's outer crust?
(a) 2.5
(b) 2.8
(c) 3.0
(d) 3.5

Answer: (b) 2.8

MCQ 2:
What is the primary composition of the Earth's oceanic crust?
(a) Lighter silicates rich in aluminum
(b) Heavier silicates rich in magnesium
(c) Sedimentary rocks
(d) Crystalline igneous rocks

Answer: (b) Heavier silicates rich in magnesium

MCQ 3:
What is the boundary between the Earth's crust and mantle called?
(a) Lithosphere
(b) Asthenosphere
(c) Moho Discontinuity
(d) Mantle Core Boundary

Answer: (c) Moho Discontinuity

MCQ 4:
What is the name of the Earth's layer where the crust and the uppermost part of the mantle are
combined?
(a) Lithosphere
(b) Asthenosphere
(c) Outer Core
(d) Lower Mantle

Answer: (a) Lithosphere

MCQ 5:
What are the main elements found in the Earth's core?
(a) Aluminum and Magnesium
(b) Silicon and Oxygen
(c) Nickel and Iron (Nife)
(d) Carbon and Sulfur

Answer: (c) Nickel and Iron (Nife)

MCQ 6:
What generates the Earth’s magnetic field?
(a) Rotation of the Earth on its axis

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 Geomorphology ONE-LINERS

(b) Movement of molten iron alloys in the outer core

(c) Solar winds

Answer: (b) Movement of molten iron alloys in the outer core

MCQ 7:
Why does Mars lack an atmosphere similar to Earth's?
(a) It is too close to the Sun
(b) Its magnetic field is turned off
(c) It has a thinner crust
(d) Its gravity is too strong

Answer: (b) Its magnetic field is turned off

MCQ 8:
Where does the magnetic equator pass in India?
(a) Kolkata
(b) Thumba
(c) Delhi
(d) Mumbai

Answer: (b) Thumba

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
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 Geomorphology ONE-LINERS

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
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 Geomorphology ONE-LINERS

MCQ 1:
What is the term used to describe the Earth's north and south magnetic fields switching polarity?
(a) Magnetic Stability
(b) Polarity Reversal
(c) Magnetic Reflection
(d) Pole Deflection

Answer: (b) Polarity Reversal

MCQ 2:
What is the Earth's magnetosphere?
(a) A layer of rocks in the crust
(b) A region of magnetic influence surrounding Earth
(c) The solid outer core of Earth
(d) A belt of minerals surrounding Earth's poles

Answer: (b) A region of magnetic influence surrounding Earth

MCQ 3:
What is the scientific study of rocks called?
(a) Geology
(b) Mineralogy
(c) Petrology
(d) Seismology

Answer: (c) Petrology

MCQ 4:
Which of the following is an example of an acidic igneous rock?
(a) Basalt
(b) Granite
(c) Gabbro
(d) Dolerite

Answer: (b) Granite

MCQ 5:
What type of igneous rock forms from the slow cooling of magma deep within the Earth's crust?
(a) Volcanic rocks
(b) Extrusive rocks
(c) Intrusive rocks (Plutonic rocks)
(d) Sedimentary rocks

Answer: (c) Intrusive rocks (Plutonic rocks)

MCQ 6:
Which type of sedimentary rock is formed by wind-deposited sediments?
(a) Loess
(b) Shale

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
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 Geomorphology ONE-LINERS

(c) Limestone
(d) Coal

Answer: (a) Loess

MCQ 7:
What does the term "metamorphic" mean in the context of rocks?
(a) Layered structure
(b) Change of form
(c) Silica-rich composition
(d) Volcanic origin

Answer: (b) Change of form

MCQ 8:
Which of the following is an example of mechanically formed sedimentary rocks?
(a) Coal
(b) Loess
(c) Halite
(d) Chalk

Answer: (b) Loess

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
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 Geomorphology ONE-LINERS

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
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 Geomorphology ONE-LINERS

MCQ1:
What is the arrangement of grains or minerals into layers or lines in metamorphic rocks called?
(a) Banding
(b) Foliation
(c) Crystallization
(d) Lineation

Answer: (b) Foliation

MCQ 2:
Which of the following is an example of a metamorphic rock?
(a) Basalt
(b) Quartzite
(c) Shale
(d) Loess

Answer: (b) Quartzite

MCQ 3:
What is the primary cause of thermal metamorphism?
(a) High pressure
(b) High temperature
(c) Erosion by glaciers
(d) Chemical reactions in the crust

Answer: (b) High temperature

MCQ 4:
Which process involves the active wearing away of Earth’s surface by agents like wind, water, and
ice?
(a) Weathering
(b) Erosion
(c) Deposition
(d) Mass movement

Answer: (b) Erosion

MCQ 5:
What drives the exogenic processes on Earth?
(a) The Earth's magnetic field
(b) Gravity and Sun’s energy
(c) Plate tectonics
(d) Earth's core temperature

Answer: (b) Gravity and Sun’s energy

MCQ 6:
What is the term for the dumping of eroded debris in certain parts of the Earth?
(a) Erosion

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
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 Geomorphology ONE-LINERS

(b) Weathering
(c) Deposition
(d) Mass movement

Answer: (c) Deposition

MCQ 7:
Which process describes the transfer of rock debris down slopes under gravity's influence?
(a) Weathering
(b) Mass movement
(c) Transportation
(d) Banding

Answer: (b) Mass movement

MCQ 8:
What type of metamorphism occurs under the influence of high pressure?
(a) Thermal metamorphism
(b) Dynamic metamorphism
(c) Chemical metamorphism
(d) Banding metamorphism

Answer: (b) Dynamic metamorphism

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
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 Geomorphology ONE-LINERS

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
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 Geomorphology ONE-LINERS

MCQ 1:
What is the process called when minerals with iron react with atmospheric oxygen?
(a) Hydrolysis
(b) Oxidation
(c) Solution
(d) Frost Action

Answer: (b) Oxidation

MCQ 2:
What type of weathering occurs due to the physical disintegration of rocks?
(a) Chemical Weathering
(b) Mechanical Weathering
(c) Oxidation
(d) Hydrolysis

Answer: (b) Mechanical Weathering

MCQ 3:
What are landforms formed by the action of surface streams called?
(a) Aeolian landforms
(b) Fluvial landforms
(c) Karst landforms
(d) Glacial landforms

Answer: (b) Fluvial landforms

MCQ 4:
Which type of mass movement involves slow downhill movement of soil or regolith?
(a) Soil Creep
(b) Landslide
(c) Avalanche
(d) Mud Flow

Answer: (a) Soil Creep

MCQ 5:
What is the primary natural cause of landslides?
(a) Blasting of mines
(b) Construction altering slopes
(c) Groundwater pressure acting on the slope
(d) Vibrations from machinery

Answer: (c) Groundwater pressure acting on the slope

MCQ 6:
Who proposed the Continental Drift Theory?
(a) Charles Darwin
(b) Alfred Wegener

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(c) Harry Hess

(d) James Hutton

Answer: (b) Alfred Wegener

MCQ 7:
What name did Alfred Wegener give to the supercontinent in his theory?
(a) Gondwana
(b) Pangaea
(c) Panthalassa
(d) Laurasia

Answer: (b) Pangaea

MCQ 8:
Which of the following is evidence supporting the Continental Drift Theory?
(a) Fossil similarities in different regions
(b) Similarity of coastlines in Africa and South America
(c) Plate tectonics activity
(d) Ocean currents

Answer: (b) Similarity of coastlines in Africa and South America

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
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 Geomorphology ONE-LINERS

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
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 Geomorphology ONE-LINERS

MCQ 1:
Who proposed the hypothesis of seafloor spreading?
(a) Arthur Holmes
(b) Alfred Wegener
(c) H. Harry Hess
(d) W.J. Morgan

Answer: (c) H. Harry Hess

MCQ 2:
What is the study of the Earth's magnetic field using magnetic records in rocks and sediments called?
(a) Seismology
(b) Paleomagnetism
(c) Petrology
(d) Convection Current Theory

Answer: (b) Paleomagnetism

MCQ 3:
Which of the following statements is true about the Plate Tectonic Theory?
(a) It was proposed by H. Harry Hess in 1960
(b) The term "plate tectonics" was first used by Tuzo Wilson
(c) It suggests the Earth's crust is a single rigid layer
(d) It explains only the formation of mountains

Answer: (b) The term "plate tectonics" was first used by Tuzo Wilson

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
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 Geomorphology ONE-LINERS

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 Geomorphology ONE-LINERS

MCQ 1:
What is the layer on which tectonic plates float?
(a) Lithosphere
(b) Asthenosphere
(c) Mantle
(d) Core

Answer: (b) Asthenosphere

MCQ 2:
Which of the following is an example of a divergent boundary?
(a) Himalayas
(b) Great African Rift Valley
(c) Andes
(d) Mariana Trench

Answer: (b) Great African Rift Valley

MCQ 3:
What type of boundary occurs when two tectonic plates come together?
(a) Divergent Boundary
(b) Transform Boundary
(c) Convergent Boundary
(d) Rift Boundary

Answer: (c) Convergent Boundary

MCQ 4:
Which tectonic plate is an example of a major plate?
(a) Arabian Plate
(b) Pacific Plate
(c) Philippine Plate
(d) Cocos Plate

Answer: (b) Pacific Plate

MCQ 5:
What type of tectonic boundary is associated with the formation of a mountain range and powerful
earthquakes?
(a) Divergent Boundary
(b) Convergent Boundary
(c) Transform Boundary
(d) Passive Boundary

Answer: (b) Convergent Boundary

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
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MCQ 1:
What happens at a transform plate boundary?
(a) Two plates collide, forming mountains
(b) Two plates slide past each other without magma formation
(c) Two plates move away, forming new crust
(d) Two plates merge to form a larger plate

Answer: (b) Two plates slide past each other without magma formation

MCQ 2:
Which of the following is an example of a transform plate boundary?
(a) Great African Rift Valley
(b) San Andreas Fault
(c) Mariana Trench
(d) Andes Mountains

Answer: (b) San Andreas Fault

MCQ 3:
What is the sequence of formation of the Himalayan ranges?
(a) Outer Himalayas → Middle Himalayas → Inner Himalayas
(b) Inner Himalayas → Outer Himalayas → Middle Himalayas
(c) Inner Himalayas → Middle Himalayas → Outer Himalayas
(d) Middle Himalayas → Inner Himalayas → Outer Himalayas

Answer: (c) Inner Himalayas → Middle Himalayas → Outer Himalayas

MCQ 4:
What is the Ring of Fire primarily associated with?
(a) Divergent plate boundaries
(b) Intense seismic activity, trenches, and volcanoes
(c) Transform plate boundaries
(d) Passive plate margins

Answer: (b) Intense seismic activity, trenches, and volcanoes

MCQ 5:
Which scale measures the magnitude of an earthquake?
(a) Mercalli Scale
(b) Beaufort Scale
(c) Richter Scale
(d) Mohs Scale

Answer: (c) Richter Scale

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
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 Geomorphology ONE-LINERS

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
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 Geomorphology ONE-LINERS

MCQ 1:
What does the Mercalli scale measure in an earthquake?
(a) The energy released
(b) The intensity and visible damage
(c) The duration of shaking
(d) The frequency of aftershocks

Answer: (b) The intensity and visible damage

MCQ 2:
Which seismic wave is the fastest and can travel through all three mediums?
(a) Love waves
(b) Primary waves (P-waves)
(c) Secondary waves (S-waves)
(d) Rayleigh waves

Answer: (b) Primary waves (P-waves)

MCQ 3:
What is the depth threshold for a shallow-focus earthquake?
(a) Less than 50 km
(b) Less than or equal to 70 km
(c) Greater than 100 km
(d) Exactly 70 km

Answer: (b) Less than or equal to 70 km

MCQ 4:
Which region globally experiences the highest seismic activity?
(a) Atlantic Ocean Ridge
(b) African Rift Valley
(c) Circum-Pacific area (Pacific Ring of Fire)
(d) Mediterranean-Himalayan belt

Answer: (c) Circum-Pacific area (Pacific Ring of Fire)

MCQ 5:
Which Indian organization is responsible for monitoring earthquakes in the country?
(a) Geological Survey of India
(b) National Centre for Seismology
(c) Indian Meteorological Department
(d) Ministry of Home Affairs

Answer: (b) National Centre for Seismology

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
35
 Geomorphology ONE-LINERS

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
36
 Geomorphology ONE-LINERS

MCQ 1:
What was the magnitude of the 1950 Assam–Tibet earthquake?
(a) 7.8
(b) 8.1
(c) 8.5
(d) 9.0

Answer: (c) 8.5

MCQ 2:
Why are earthquakes in Assam more damaging than in other places?
(a) The area is located on a tectonic plate boundary
(b) The soil is loosely packed and experiences liquefaction during earthquakes
(c) The region experiences frequent volcanic eruptions
(d) The area has a high frequency of aftershocks

Answer: (b) The soil is loosely packed and experiences liquefaction during earthquakes

MCQ 3:
What is an Earthquake Swarm?
(a) A single large earthquake followed by multiple aftershocks
(b) A series of small earthquakes with no identifiable mainshock
(c) A sequence of volcanic eruptions with minor tremors
(d) Earthquakes occurring due to mining activities

Answer: (b) A series of small earthquakes with no identifiable mainshock

MCQ 4:
Which type of volcanic eruption forms a flat dome due to fluid basalt lava?
(a) Composite Volcano
(b) Shield Volcano
(c) Ash and Cinder Cone
(d) Stratovolcano

Answer: (b) Shield Volcano

MCQ 5:
What type of magma is associated with higher silica content and more explosive eruptions?
(a) Basaltic Magma
(b) Andesitic Magma
(c) Shield Magma
(d) Composite Magma

Answer: (b) Andesitic Magma

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
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 Geomorphology ONE-LINERS

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
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 Geomorphology ONE-LINERS

MCQ 1:
Why is Andesitic magma more explosive than Basaltic magma?
(a) It contains lower silica content
(b) It is cooler in temperature
(c) It has higher gas content
(d) It forms shield volcanoes

Answer: (c) It has higher gas content

MCQ 2:
What are Batholiths?
(a) Large dome-shaped intrusive bodies
(b) Huge masses of igneous rocks formed by solidification of magma within the crust
(c) Horizontal solidified lava layers inside the Earth
(d) Wavy intrusive rocks found in folded regions

Answer: (b) Huge masses of igneous rocks formed by solidification of magma within the crust

MCQ 3:
What is the name for a saucer-shaped intrusive volcanic landform?
(a) Batholith
(b) Laccolith
(c) Lopolith
(d) Phacolith

Answer: (c) Lopolith

MCQ 4:
Which volcanic landform forms when lava solidifies in cracks and fissures, almost perpendicular to
the ground?
(a) Sills
(b) Dykes
(c) Laccoliths
(d) Phacoliths

Answer: (b) Dykes

MCQ 5:
What type of forces are responsible for up warping and down warping of continents?
(a) Orogenic forces
(b) Epeirogenic forces
(c) Volcanic forces
(d) Compressional forces

Answer: (b) Epeirogenic forces

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
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 Geomorphology ONE-LINERS

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
40
 Geomorphology ONE-LINERS

MCQ 1:
Which type of mountain is formed due to the compression of tectonic plates, creating large fold-like
structures?
(a) Block Mountains
(b) Residual Mountains
(c) Fold Mountains
(d) Volcanic Mountains

Answer: (c) Fold Mountains

MCQ 2:
What are the uplifted blocks in Block Mountains called?
(a) Graben
(b) Horsts
(c) Faults
(d) Rifts

Answer: (b) Horsts

MCQ 3:
Which of the following is an example of a Block Mountain?
(a) Himalayas
(b) Vosges Mountains
(c) Mount Fuji
(d) Andes

Answer: (b) Vosges Mountains

MCQ 4:
What type of mountains are characterized by granite intrusions and are predominantly composed of
sedimentary rocks?
(a) Volcanic Mountains
(b) Fold Mountains
(c) Residual Mountains
(d) Block Mountains

Answer: (b) Fold Mountains

MCQ 5:
Which fault is an example of a long fault visible from space?
(a) Rhine Valley
(b) San Andreas Fault
(c) Vosges Fault
(d) Great African Rift Valley

Answer: (b) San Andreas Fault

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
41
 Geomorphology ONE-LINERS

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
42
 Geomorphology ONE-LINERS

MCQ 1:
What is another name for reverse faults?
(a) Thrust faults
(b) Normal faults
(c) Transform faults
(d) Strike-slip faults

Answer: (a) Thrust faults

MCQ 2:
Which of the following is an example of a residual mountain?
(a) Vosges Mountains
(b) Rajmahal Hills
(c) Rocky Mountains
(d) Plateau of Tibet

Answer: (b) Rajmahal Hills

MCQ 3:
Which type of plateau is surrounded by fold mountains?
(a) Piedmont Plateau
(b) Volcanic Plateau
(c) Intermontane Plateau
(d) Dissected Plateau

Answer: (c) Intermontane Plateau

MCQ 4:
What type of plains are formed due to deposition of sediments by rivers, glaciers, and wind?
(a) Structural Plains
(b) Erosional Plains
(c) Depositional Plains
(d) Tectonic Plains

Answer: (c) Depositional Plains

MCQ 5:
Which type of mountain has flat tops or slightly sloping surfaces and steep sides?
(a) Residual Mountains
(b) Fold Mountains
(c) Block Mountains
(d) Volcanic Mountains

Answer: (c) Block Mountains

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
43
 Geomorphology ONE-LINERS

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
44
 Geomorphology ONE-LINERS

MCQ 1:
Which of the following is an example of a lacustrine plain?
(a) Assam floodplain
(b) Kashmir Valley
(c) Abyssal plain
(d) Outwash plain

Answer: (b) Kashmir Valley

MCQ 2:
What type of plain is formed by the deposition of sediments from river meltwater at the snout of a
glacier?
(a) Till plain
(b) Outwash plain
(c) Abyssal plain
(d) Lava plain

Answer: (b) Outwash plain

MCQ 3:
What is an abyssal plain?
(a) A plain formed by glacial deposits
(b) A plain located at great depths on the ocean floor
(c) A plain formed by lava accumulation
(d) A plain formed by river sediment deposition

Answer: (b) A plain located at great depths on the ocean floor

MCQ 4:
Which coastal region is highly prone to tsunamis?
(a) Coastal areas of Japan and the Andaman and Nicobar Islands
(b) Western coasts of Europe
(c) The African Rift Valley
(d) The Amazon River delta

Answer: (a) Coastal areas of Japan and the Andaman and Nicobar Islands

MCQ 5:
What causes meteotsunamis?
(a) Undersea earthquakes
(b) Weather systems, such as fast-moving storm systems
(c) Volcanic eruptions
(d) Glacial movement

Answer: (b) Weather systems, such as fast-moving storm systems

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
45
 Geomorphology ONE-LINERS

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
46
 Geomorphology ONE-LINERS

MCQ 1:
What is the key difference between geysers and hot springs?
(a) Geysers release cold water, while hot springs release hot water
(b) Geysers erupt hot water and steam, while hot springs do not erupt
(c) Hot springs form in oceans, while geysers form on land
(d) Hot springs are always freshwater, while geysers are saline

Answer: (b) Geysers erupt hot water and steam, while hot springs do not erupt

MCQ 2:
Which is the largest continent by area?
(a) Africa
(b) Asia
(c) Europe
(d) North America

Answer: (b) Asia

MCQ 3:
Which is the smallest continent by area?
(a) Europe
(b) Antarctica
(c) Australia
(d) South America

Answer: (c) Australia

MCQ 4:
What is the deepest underwater trench?
(a) Puerto Rico Trench
(b) Mariana Trench
(c) Java Trench
(d) Tonga Trench

Answer: (b) Mariana Trench

MCQ 5:
Which lake is the largest freshwater lake by volume?
(a) Lake Superior
(b) Lake Tanganyika
(c) Lake Baikal
(d) Caspian Sea

Answer: (c) Lake Baikal

MCQ 6:
Which ocean is the smallest by area?
(a) Indian Ocean
(b) Arctic Ocean

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
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 Geomorphology ONE-LINERS

(c) Southern Ocean

(d) Atlantic Ocean

Answer: (b) Arctic Ocean

MCQ 7:
Which gulf is the largest in the world?
(a) Persian Gulf
(b) Gulf of Mexico
(c) Gulf of Aden
(d) Gulf of Alaska

Answer: (b) Gulf of Mexico

MCQ 8:
Which is the longest river in the world?
(a) Amazon
(b) Yangtze
(c) Nile
(d) Mississippi

Answer: (c) Nile

MCQ 9:
Which island is the largest in the world by area?
(a) Madagascar
(b) New Guinea
(c) Greenland
(d) Borneo

Answer: (c) Greenland

MCQ 10:
Which is the longest mountain range in the world?
(a) Rockies
(b) Andes
(c) Himalayas
(d) Alps

Answer: (b) Andes

SPM IAS Academy, Times Square Mall 4th floor, Sundarpur Road R.G Baruah Road, Zoo Rd, Guwahati,
Assam – 781005 Phone: 6901259799, Students’ Support Team: 7099064717,
Email: spmiasacademy@gmail.com
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