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9th ICSE MCQ

The document contains 10 multiple choice questions about earthquakes. It tests knowledge about key earthquake terminology like epicenter, seismic focus, Richter scale, Mercalli scale, and types of earthquake waves. It also covers causes of earthquakes related to plate tectonics and factors that are not causes, like lava. Additionally, it addresses destructive effects of earthquakes except energy release.
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0% found this document useful (1 vote)
4K views15 pages

9th ICSE MCQ

The document contains 10 multiple choice questions about earthquakes. It tests knowledge about key earthquake terminology like epicenter, seismic focus, Richter scale, Mercalli scale, and types of earthquake waves. It also covers causes of earthquakes related to plate tectonics and factors that are not causes, like lava. Additionally, it addresses destructive effects of earthquakes except energy release.
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Question 1

A tremor below the surface of the earth which causes shaking of the crust:

1. Earthquake waves
2. Earthquake
3. Seismic waves
4. None of the above

Answer

Earthquake

Question 2

A series of shocks that result from sudden earth movement:

1. Earthquake
2. Volcanoes
3. Earthquake waves
4. Plate tectonics

Answer

Earthquake waves

Question 3

Which amongst the following is NOT a factor that causes an earthquake?

1. Folding and faulting


2. Volcanoes
3. Lava
4. Plate tectonics

Answer

Lava

Question 4

Which waves are recorded on a seismograph after the P waves?

1. Primary waves
2. Push waves
3. Shear waves
4. Surface waves
Answer

Shear waves

Question 5

Which of the following measures the power of an earthquake on a scale of 1 to 9?

1. Seismograph
2. Richter scale
3. Mercalli scale
4. Thermometer

Answer

Richter scale

Question 6

The point on the earth's surface directly above the seismic focus is called:

1. Epicentre
2. Seismic focus
3. Seismograph
4. Mercalli

Answer

Epicentre

Question 7

The instrument that grades the earthquakes on the basis of observed effects on a 12-point
scale.

1. Thermometer
2. Seismograph
3. Richter scale
4. Mercalli scale

Answer

Mercalli scale

Question 8

Which, amongst the following, is NOT a destructive effect of earthquakes?


1. Submergence
2. Landslides
3. Energy release
4. Tsunami

Answer

Energy release

Question 9

A large destructive ocean wave that can be generated by any disturbance (earthquakes,
volcanoes etc.) that rapidly displaces a large mass of water:

1. Submergence
2. Tsunami
3. Landform
4. Volcano

Answer

Tsunami

Question 10

Which of the following is not correct?

1. Circum-Pacific Mountain Belt : 70% of world earthquakes


2. Mid Atlantic Ridge: 10% of world earthquakes
3. Mid World Mountain Belt: 20% of world earthquakes
4. Pacific Ring of Fire: 15% of world earthquakes

Answer

Pacific Ring of Fire: 15% of world earthquakes

Question 1

The process of breaking down of rocks but not their removal:

1. Weathering
2. Block Disintegration
3. Oxidation
4. Mechanical Weathering

Answer

Weathering
Question 2

Which amongst the following is NOT a characteristic of Weathering?

1. It affects the surface of the earth


2. It changes hard massive rocks into finer materials
3. It causes disintegration of soil
4. It involves disintegration or decay of solid rocks

Answer

It causes disintegration of soil

Question 3

Rock disintegration without any change in the chemical constituents of the rock:

1. Block Disintegration
2. Mechanical Weathering
3. Carbonation
4. Organic Weathering

Answer

Mechanical Weathering

Question 4

The sudden contraction and expansion peels off the outer rock layer:

1. Solution
2. Exfoliation
3. Hydration
4. Oxidation

Answer

Exfoliation

Question 5

Reaction of minerals in rocks to atmospheric oxygen:

1. Oxidation
2. Solution
3. Hydration
4. Carbonation
Answer

Oxidation

Question 6

Which of the following occurs in moist and cold climates?

1. Mechanical Weathering
2. Chemical Weathering
3. Organic Weathering
4. Physical Weathering

Answer

Physical Weathering

Question 7

Biological Weathering is also known as:

1. Mechanical Weathering
2. Chemical Weathering
3. Organic Weathering
4. Physical Weathering

Answer

Organic Weathering

Question 8

Expansion of minerals on coming into contact with rainfall:

1. Oxidation
2. Solution
3. Hydration
4. Carbonation

Answer

Hydration

Question 9

A process in which minerals in the rocks dissolve in water:

1. Solution
2. Oxidation
3. Carbonation
4. Hydration

Answer

Solution

Question 10

Which of the following is more rapid in desert climates?

1. Mechanical Weathering
2. Chemical Weathering
3. Organic Weathering
4. Weathering

Answer

Mechanical Weathering

Question 11

In which of the following decomposition of rocks take place with changes in the chemical
constituents of rocks?

1. Weathering
2. Chemical weathering
3. Organic Weathering
4. Physical Weathering

Answer

Chemical weathering

Question 12

In which of the following climates there is a marked dry season and wet season?

1. Polar climates
2. Equatorial climates
3. Tropical climates
4. Dry climates or deserts

Answer

Tropical climates
Question 13

The internal forces operating in the interior of the earth are called ............... .

1. Exogenic forces
2. Endogenic forces
3. Constructive forces
4. Weathering forces

Answer

Constructive forces

Question 14

Tension and splitting of rocks is known as ................ .

1. Hydration
2. Weathering
3. Block Disintegration
4. Solution

Answer

Block Disintegration

Question 15

In which of the following climates physical weathering due to frost action is more prevalent?

1. Equatorial climates
2. Polar climates
3. Tropical climates
4. Temperate climates

Answer

Polar climates

Question 1

The process of breaking and removing the rocks from the surface of the earth:

1. Erosion
2. Mass movement
3. Denudation
4. Weathering
Answer

Denudation

Question 2

The disintegration of rocks by atmospheric agents at or near the surface of the earth:

1. Erosion
2. Weathering
3. Mass movement
4. Denudation

Answer

Weathering

Question 3

The displacement of rocks by agents like wind, water or ice:

1. Deposition
2. Transportation
3. Erosion
4. Mass wasting

Answer

Erosion

Question 4

The large-scale movement of loose materials (rock-waste) down the slope on account of
gravity:

1. Mass movement
2. Deposition
3. Denudation
4. Weathering

Answer

Mass movement

Question 5

The laying down of material that has been weathered, eroded and transported by natural
processes such as water, wind and ice.
1. Physical Weathering
2. Deposition
3. Denudation
4. Tributary

Answer

Deposition

Question 6

The streams or small rivers which join the main river are called:

1. Transporteries
2. Tributaries
3. Distributaries
4. Meanders

Answer

Tributaries

Question 7

When a river divides into channels or smaller rivers they are called its:

1. Tributaries
2. Distributaries
3. Meanders
4. Transporteries

Answer

Distributaries

Question 8

In the upper course the dominant activity of a river is:

1. Valley
2. Meander
3. Erosion
4. Mass wasting

Answer

Erosion
Question 9

............... are moon-shaped dunes.

1. Dunes
2. Sand Dunes
3. Barchan
4. Seifs

Answer

Barchan

Question 10

Stationary, long and narrow sand-ridges which grow parallel to the direction of the prevailing
wind and remain in a fixed position.

1. Dunes
2. Sand Dunes
3. Barchan
4. Seifs

Answer

Seifs

Question 11

The lowering of land, rounding of exposed rock surfaces and levelling of the peaks:

1. Denudation
2. Erosion
3. Mass wasting
4. Deposition

Answer

Denudation

Question 12

There are ............... active agents of denudation.

1. 7
2. 6
3. 8
4. 4
Answer

Question 13

Which amongst the following is not a factor affecting work of a river?

1. Velocity of water
2. Quality of water
3. Volume of water
4. Load

Answer

Quality of water

Question 14

Dunes have heights ranging from a few metres to about ............... metres.

1. 170
2. 160
3. 142
4. 150

Answer

150

Question 1

Hydrosphere refers to the combined mass of water :

1. in the oceans
2. rivers, streams and lakes
3. in the atmosphere
4. All of the above.

Answer

All of the above

Question 2

Ocean : 97% :: Fresh water : ...............

1. 3%
2. 2.3%
3. 0.7%
4. 0.66%

Answer

0.7%

Question 3

Underground water is found in:

1. soil
2. subsoil
3. underground streams
4. All of the above.

Answer

All of the above

Question 4

Name the oscillatory movements in water, manifested by an alternate rise and fall of the sea
surface.

1. Tides
2. Waves
3. Spheres
4. Oscillations

Answer

Waves

Question 5

Apogee : Earth-moon distance ............... :: Perigee : Earth-moon distance ...............

1. maximum, minimum
2. minimum, maximum
3. equal, equal
4. All of the above.

Answer

maximum, minimum
Question 6

............... flow from the lower latitudes towards the higher latitudes.

1. Warm currents
2. Cold currents
3. Surface currents
4. Deep water currents

Answer

Warm currents

Question 7

Which amongst the following is NOT one of the causes of Ocean Currents?

1. Level of Salinity
2. Temperature
3. The Earth's Revolution
4. Planetary Winds

Answer

The Earth's Revolution

Question 8

Name the winds that blow between the Equator and the Tropics.

1. Westerlies
2. Trade Winds
3. Monsoon Winds
4. Summer Winds

Answer

Trade Winds

Question 9

What is the direction of air circulation over the oceans in the middle latitudes?

1. Cyclonic
2. Hemispherical
3. Spherical
4. Anticyclonic
Answer

Anticyclonic

Question 10

Name the warm Atlantic Ocean Current which flows from North America to Western Europe.

1. The West Atlantic Drift


2. The East Atlantic Drift
3. The North Atlantic Drift
4. The South Atlantic Drift

Answer

The North Atlantic Drift

Question 11

Which current is also known as the 'Black Stream'?

1. Atlantic current
2. Kuroshio current
3. Oyashio current
4. Newfoundland current

Answer

Kuroshio current

Question 12

Name the current that keeps ports of Europe ice-free in winters

1. North Atlantic drift


2. Labrador current
3. Canaries current
4. Florida current

Answer

North Atlantic drift

Question 13

Which currents have created one of the world's richest fishing grounds?

1. Labrador current and Gulf stream


2. Labrador current and Irminger current
3. Oyashio current and Kuroshio current
4. Both (a) and (c).

Answer

Both (a) and (c)

Question 14

Currents influence:

1. temperature
2. rainfall
3. fish population
4. all of the above.

Answer

all of the above

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