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CHAPTER 14
Natural Resources

1. OBJECTIVE QUESTIONS NO NEED TO PURCHASE ANY BOOKS

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1. The main reason of pollution in river A could be due 1. Previous 15 Years Exams Chapter-wise Question
to accumulation of Bank
(a) phosphates of detergents in the river 2. Previous Ten Years Exam Paper (Paper-wise).
(b) hot water released from industries 3. 20 Model Paper (All Solved).
(c) mercury salts in the river 4. NCERT Solutions
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(d) pathogenic micro organisms in the river
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Ans : (a) phosphates of detergents in the river New Delhi in any manner. www.cbse.online is a private organization which provide free
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In river A, there is seen a high level of algal bloom. For School Education
Phosphates of detergents stimulate the algal growth
(algal bloom), which is called eutrophication.
5. Materials of biological origin which are commonly
2. Regularly breathing air that contains unburnt carbon used to maintain and improve soil fertility are
particles causes health problems such as (a) green manure (b) biofertilizers
(a) asthma (b) allergies
(c) bioinsecticides (d) both a and b
(c) cancer (d) all of these
Ans : (d) both a and b
Ans : (d) all of these Most soils are naturally fertile but to maintain its
The combustion of fossil fuels increases the amount fertile nature, fertilizers are needed. Green manure
of suspended particles in air that could be unburnt and biofertilizers contain range of nutrients in different
carbon particles or substances called hydrocarbons. proportions which are essential for plants.
Presence of high levels of all these pollutants cause
visibility to be lowered, especially in cold weather when 6. Which of the following phenomenon refers to ‘ozone
water also condenses out of air. Regularly breathing hole’ ?
air that contains any of these substances increases the (a) Absorption of carbon-dioxide by plants.
incidence of allergies, cancer and heart diseases. (b) Concentration of ozone as a whole.
3. What happens if a person is exposed too much to (c) Much larger, seasonal, decrease in stratospheric
ultraviolet rays? ozone over polar regions of earth.
(a) It affects weather. (d) None of these
(b) It causes rickets. Ans : (c) Much larger, seasonal, decrease in
(c) It causes cancer. stratospheric ozone over polar regions of earth.
(d) It is a rich source of vitamin D. Ozone depletion explains two observations. One is
the slow, gradual decline of about 4% per decade
Ans : (c) It causes cancer. in the total amount of ozone in earth’s stratosphere
Too much exposure to UV rays causes skin cancer. since 1980. Other is much larger, seasonal decrease
The depleted ozone layer allows ultraviolet radiation in stratospheric ozone over polar regions during the
from the sun to reach earth’s surface which disturb said period. The latter is commonly referred as ‘Ozone
weather patterns through. hole’.
4. Topsoil contains 7. Select the incorrect statement(s) regarding soil erosion.
(a) living organisms only 1. Soil erosion can be prevented by terrace farming.
(b) humus and soil particles only 2. Overgrazing and terrace farming both promotes
(c) dead organisms and living plants soil erosion.
(d) humus, living organisms and soil particles. 3. Soil erosion decreases the fertility of soil.
(a) 1 and 2 (b) Only 2
Ans : (d) humus, living organisms and soil particles. (c) 2 and 3 (d) 1, 2 and 3
The topmost layer of the soil that contains humus
and living organisms in addition to the soil particles Ans : (b) Only 2
is called the topsoil. Terracing is one of the very good methods of soil
conservation. A terrace is levelled section of hilly

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cultivated area. Owing to its unique structure it this produces different oxides of nitrogen and sulphur.
prevents the rapid surface run-off of water. They dissolve in rain water to give rise to acid rain.

8. What does MAB stand for? 14. Identify the gas that can result in the formation of
(a) Man and biosphere acid rain.
(b) Man antibodies and bacterial (a) Ozone (b) Carbon monoxide
(c) Man and biotic community (c) Sulphur dioxide (d) Chlorofluorocarbon
(d) Mayer, Anderson and Bishby Ans : (c) Sulphur dioxide
Ans : (a) Man and biosphere Sulphur dioxide result in the formation of acid rain.
MAB stands for Man and biosphere. 15. Which gas associated with the greenhouse effect?
9. The elemental forms of carbon are (a) Carbon-dioxide (b) Oxygen
(a) diamond and graphite (c) Nitrogen dioxide (d) Sulphur dioxide
(b) carbonate and graphite Ans : (a) Carbon-dioxide
(c) hydrogen carbonate and graphite The gas associated with the greenhouse effect is
(d) carbonate and hydrogen carbonate carbon-dioxide.

Ans : (a) diamond and graphite 16. Which of the following process converts nitrate to
Carbon occurs in the elemental form as diamonds nitrous oxide and nitrogen gas?
and graphite and in the combined state, as carbon (a) Nitrification (b) Denitrification
dioxide in the atmosphere, as carbonate and hydrogen (c) Nitrogen-fixation (d) Geological cycle
carbonate salts in various minerals.
Ans : (b) Denitrification
10. Which of the following processes is not a part of the The conversion of nitrate to nitrous oxide and nitrogen
carbon cycle? gas is called denitrification.
(a) Photosynthesis (b) Transpiration
17. Ozone is a molecule containing
(c) Respiration (d) Combustion
(a) three atoms of nitrogen
Ans : (b) Transpiration (b) two atoms of oxygen
Transpiration is a part of the water cycle. (c) three atoms of oxygen
For more files visit www.cbse.online (d) two atoms of nitrogen
11. In which zone of atmosphere does the cloud formation Ans : (c) three atoms of oxygen
take place? Ozone is an isotope of oxygen. It is a molecule
(a) Troposphere (b) Stratosphere containing three atoms of oxygen (O 3).
(c) Thermosphere (d) Ozonesphere
18. In the atmosphere, the two forms of oxygen found are
Ans : (a) Troposphere (a) glucose and ozone
Cloud formation takes place in troposphere. (b) glucose and oxygen
12. How is ozone formed? (c) ozone and oxygen
(a) Three carbon atoms combine to form ozone. (d) water and carbon dioxide
(b) Three oxygen atoms combine to form ozone. Ans : (c) ozone and oxygen
(c) One carbon atom and two oxygen atoms split to Elemental oxygen is normally found in the form of a
form ozone. diatomic molecule. However, in the upper reaches of
(d) One oxygen atom and two hydrogen atoms split the atmosphere, a molecule containing three atoms of
to form ozone. oxygen O 3 called ozone is found.

Ans : (b) Three oxygen atoms combine to form ozone. 19. ODS stands for
Three oxygen atoms combine to form one ozone (a) Ozone developing substances
molecule. (b) Ozone depleting substances
13. Acid rain can be best defined as (c) Ozone developing sources
1. surface run-off from agricultural land containing (d) Ozone depleted sources
chemicals like fertilizers. Ans : (b) Ozone depleting substances
2. rain water containing dissolved acids.
3. the rain of acids formed in the clouds due to 20. Find the factors that cause greenhouse effect.
lighting. (a) Ozone layer in the atmosphere
(a) 1 and 2 (b) 1 and 3 (b) Infrared light reaching the earth
(c) Only 2 (d) Only 1 (c) Moisture layer in the atmosphere
Ans : (c) Only 2 (d) CO 2 layer in the atmosphere
The fossil fuels like coal and petroleum contain small
Ans : (d) CO 2 layer in the atmosphere
amounts of nitrogen and sulphur. When these fuels
Presence of CO 2 layer in the atmosphere causes
are burnt, nitrogen and sulphur too are burnt and

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greenhouse effect. 26. Which of the following is a major cause of air pollution?
(a) Burning of wood
21. Ozone layer of atmosphere protects the living
(b) Burning of biogas
organisms from
(a) high temperature (c) Burning of cow dung cakes
(b) harmful radiations of sun (d) Burning of fossil fuels
(c) hail and snow Ans : (d) Burning of fossil fuels
(d) water pollution Burning of fossil fuels causes major harms. The
burning of fossil fuels like coal, natural gas, petroleum
Ans : (b) harmful radiations of sun in automobiles, industries and thermal plants leads to
Ozone layer is a region of concentration of ozone increase in air pollution.
molecule, O 3 (O 2 + O) in the Earth’s atmosphere.
The ozone layer naturally shields Earth’s life from the Add 8905629969 in Your Class Whatsapp Group to Get All PDFs
harmful effect of the Sun’s ultraviolet radiations.
27. Find the correct statement.
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(a) Ozone is a pollutant. (b) Ozone is a protector.
22. What is air composed of? (c) Both (a) and (b) (d) None of these
(a) Nitrogen, oxygen, methane, carbon-dioxide and Ans : (c) Both (a) and (b)
noble Ozone is a pollutant as well as a protector.
(b) Nitrogen, oxygen, carbon-dioxide, water vapours 1. Ozone reduces air visibility and causes various
and gases health problems (eye wetting, respiratory distress)
(c) Nitrogen, carbon-dioxide, oxygen, carbon etc. It lowers the yield of crop, affects tree growth
monoxide and gases in forests and decline them.
(d) Nitrogen, oxygen, carbon monoxide, water 2. Ozone layer or ozone shield protects biosphere
vapours and gases from harmful radiations of sun (UV radiations). In
this way, it acts as an umbrella for the biosphere.
Ans : (b) Nitrogen, oxygen, carbon-dioxide, water 3. In stratosphere, its synthesis takes place using
vapours and gases O 2 and energy of UV radiation (a photochemical
Air is a mixture of nitrogen, oxygen, carbon-dioxide, reaction). This process generates enough heat
water vapours and other inert gases. which protects biosphere from excessive cooling
effect of outer atmosphere. In this way, here it
23. Which one of the following is an inexhaustible
acts as a blanket that covers the biosphere.
resource?
(a) Fossil fuels (b) Minerals 28. Rainfall patterns across a particular area mainly
(c) Soil (d) Solar radiation depends on
1. the prevailing wind patterns.
Ans : (d) Solar radiation
2. the pattern of population density in the area.
Solar energy is inexhaustible.
3. the amount of available groundwater in the area.
24. The given figure shows a part of the carbon cycle. (a) 1 and 3 (b) 1 and 2
(c) 2 and 3 (d) Only 1
Ans : (d) Only 1
Rainfall patterns are decided by the prevailing wind
patterns. In large parts of India, rains are mostly
brought by the South-West or North-East monsoons.

29. Why is ozone layer important?

(a) It is used by living organisms for respiration.
(b) It increases the temperature of the earth.
(a) Decomposition (b) Respiration (c) It reduces the amount of ultraviolet rays reaching
(c) Photosynthesis (d) Nutrition the earth.
(d) It reflects the heat from the earth back into the
Ans : (c) Photosynthesis atmosphere.
R in the given figure represents photosynthesis.
Ans : (c) It reduces the amount of ultraviolet rays
25. In which part of leguminous plants are nitrogen-fixing reaching the earth.
bacteria found? The ozone layer is important because it reduces the
(a) Root nodules (b) Leaves amount of ultraviolet rays reaching the earth.
(c) Stems (d) Flowers
30. Which of the following does not lead to water
Ans : (a) Root nodules pollution?
Nitrogen fixing bacteria are present in the root nodules (a) The addition of undesirable substances to water-
of leguminous plants. bodies.
(b) The removal of desirable substances from water-

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bodies. heat may escape back into space and earth’s average
(c) A change in pressure of the water bodies. temperature may be about 60cF colder. It is because
(d) A change in temperature of the water bodies. of these greenhouse gases the world is at warmth.

Ans : (c) A change in pressure of the water bodies. 34. What if there is a sudden temperature change in both
We use the term water pollution to cover the following the rivers?
effects: (a) Amount of dissolved oxygen will decrease.
1. The addition of undesirable substances such as (b) Amount of disease causing organisms will increase.
fertilizers and pesticides to water-bodies. (c) Adversely affect the process of breeding of aquatic
2. The removal of desirable substances like dissolved lives in both the rivers.
oxygen from water-bodies. (d) Help in reducing the rate of pollution as most
3. A change in temperature. micro organisms and algae are susceptible to heat.
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Ans : (c) Adversely affect the process of breeding of
31. Find a poisonous pollutant from the following. aquatic lives in both the rivers.
(a) SO 2 (b) CO A change in temperature adversely affect aquatic
(c) CO 2 (d) NH 3 organisms as they are used to a certain range of
temperature in the water-body where they live, and
Ans : (b) CO a sudden marked change in this temperature would
Carbon monoxide (CO) is a toxic air pollutant. be dangerous for them or affect their breeding. The
Automobiles, cigarettes etc. release carbon monoxide in eggs and larvae of various animals are particularly
the form of smoke. Our blood has respiratory pigment, susceptible to temperature changes.
haemoglobin (Hb) in the erythrocytes (RBCs) and it
has high affinity for oxygen. As a result of breathing, 35. What is meant by conserving the environment?
oxygen combines with haemoglobin in the lungs and (a) Not destroying natural resources
is carried by blood to various body tissues in the (b) Not lowering the quality of the environment
form of oxyhaemoglobin (OHb). Carbon monoxide (c) Changing natural resources from its original state
(CO), a poisonous gas, has 200 times more affinity (d) Preserving the condition of the nature that has
for haemoglobin than oxygen. When the polluted air been destroyed
containing large amount of CO is inhaled, the CO
then combines with haemoglobin to form a stable Ans : (a) Not destroying natural resources
poisonous compound called carboxyhaemoglobin Conserving the environment means not destroying
(COHb). This drastically reduces the availability of natural resources.
oxygen to the body tissues and leads to suffocation
and finally to the death of an individual. 36. .......... maintain the organic matter of the soil.
(a) Fungi and semi-parasites
32. Select the correct statement(s) regarding water (b) Cyanobacteria and parasitic animals
harvesting. (c) Protozoans and slime moulds
1. It is the process of collecting water from tube
(d) Bacteria and fungi
wells.
2. It is the process of collection of river water for Ans : (d) Bacteria and fungi
irrigation. Bacteria and fungi carry out the decomposition of
3. It is the technique of collection of rainwater for plant residues, breaking them down and holding the
use during irrigation. nutrients in their bodies, this prevents the nutrients
4. It is the collection of rainwater in the soil to leaching out into the soil. They hold the nutrients until
recharge ground water. the nutrients are consumed by protozoa, nematodes
(a) 1, 3 and 4 (b) Only 1 and then release the remaining nutrients in plants in
(c) 3 and 4 (d) 1, 2, 3 and 4 the available form.

Ans : (c) 3 and 4 37. What do you mean by ‘environment’ ?

Capturing rain water or capturing run-off in an area (a) Lithosphere (b) Biosphere
and taking measures to keep that water clean and (c) Hydrosphere (d) Atmosphere
use it for other purposes like irrigation, recharging
groundwater is called rainwater harvesting. Ans : (b) Biosphere
Environment is also called as biosphere. It includes -
33. Heat reflected from earth’s surface is trapped in the lithosphere, hydrosphere and atmosphere. Biosphere
atmosphere. What is the phenomenon called as? is life supporting zone of earth where all of these three
(a) Global warming (b) Ozone depletion interact and make the life possible.
(c) The greenhouse effect (d) Thermal pollution
38. Ecosystem comprises both abiotic and biotic
Ans : (c) The greenhouse effect components. Biotic component of an ecosystem
Greenhouse effect is the rise in temperature that consist of
the earth experiences because of certain gases in (a) producers (b) consumers
the atmosphere. Water vapour, CO 2 , NO, methane
etc. trap energy from the sun. Without these gases

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(c) decomposers (d) all of these 9. Forests and wildlife are examples of .......... renewable
resources.
Ans : (d) all of these
Biotic component of an ecosystem are the living part Ans : Living
like plants, animals, bacteria, etc. Producers (plants),
consumers (animals) and decomposers (bacteria, fungi) 10. Evaporation of water from water-bodies and
all are living or biotic component of an ecosystem. subsequent condensation gives us ..........
Ans : Rain
39. Select the term that means ‘cycling of elements in an
ecosystem’.
(a) Chemical cycle (b) Geochemical cycle 3. TRUE/FALSE
(c) Bio-geochemical cycle (d) Geological cycle
Ans : (c) Bio-geochemical cycle 1. Presence of oxygen increases nitrogen fixation in
The term ‘Bio-geochemical cycle’ means cycling of Rhizobium.
elements in an ecosystem. Ans : False
40. Select the process(es) which is/are part of both carbon Nitrogen gases in air help in nitrogen fixation.
cycle and oxygen cycle.
(a) Photosynthesis (b) Respiration 2. 75% of Earth’s surface is covered with water.
(c) Transpiration (d) Both a and b Ans : True

Ans : (d) Both a and b 3. Biosphere forms living mantle of Earth.

Both carbon and oxygen are circulated (in the form
Ans : True
of carbon dioxide) in the atmosphere by the processes
called photosynthesis an respiration.
4. Ozonosphere is located in troposphere of atmosphere.
Ans : False
2. FILL IN THE BLANK
Ozonosphere is located in stratosphere.

5. Carbon monoxide and carbon-dioxide of air produce

1. .......... is 75% of the total surface of the Earth that is
acid rain.
covered by water.
Ans : False
Ans : Hydrosphere
SO 2 and NO produces acid rain.
2. Carbon present in the abiotic environment is fixed
6. Topsoil is the uppermost fertile layer of soil that is
by the plants in the form of atmospheric CO 2 and
rich in mineral nutrients.
dissolved CO 2 in water through a photochemical
process known as .......... Ans : True
Ans : Photosynthesis
7. Winds develop due to uneven heating of Earth.
3. Pattern of the rainfall depends on the pattern of Ans : True
..........
Ans : Wind 8. Air forms a protective blanket around the earth and
does not allow all the solar radiations to reach the
Earth.
4. One of the main aim of management of forests and
wildlife is to conserve the .......... which we have Ans : False
inherited. Atmosphere forms a protective blanket around the
Ans : Biodiversity earth.

9. Various nutrients are used again and again in a cyclic

5. An .......... consists of two components .......... and
fashion
biotic.
Ans : True
Ans : Ecosystem, abiotic

10. Pollution of air, water and soil affect the quality of life
6. Glaciers are a sources of ..........
and harm the biodiversity.
Ans : Water
Ans : True
7. Nitrogen fixation is conversion of .......... nitrogen into
nitrates. 4. MATCHING QUESTIONS
Ans : Atmospheric
DIRECTION : Each question contains statements given in
8. Uneven heating of air over the land and water-bodies two columns which have to be matched. Statements (A, B, C,
causes .......... D) in column-I have to be matched with statements (p, q, r, s)
Ans : Winds in column II.

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1. A B C D E F
Column I Column II (a) p q s r u t
(A) Green house gas (p) CO 2 (b) q r s p u t

(B) Nitrogen fixation (q) O3 (c) u t s p q r

(d) p r s q t u
(C) Ozone (r) Rhizobium
(D) Carbon cycle (s) Bio-geochemical Ans : (b) A-q, B-r, C-s, D-p, E-u, F-t

4.
A B C D
Column I Column II
(a) q p r s
(A) Water cycle (p) Basis of high energy
(b) q s r p compound ATP
(c) p r q s (B) Carbon cycle (q) Self perpetuating
(d) r q p s (C) Nitrogen cycle (r) Hydrological cycle
Ans : (c) A-p, B-r, C-q, D-s (D) Oxygen cycle (s) Lightening in nature
(E) Phosphorous (s) Basis of
2.
photosynthesis
Column I Column II
(Incubation A B C D E
Period)
(a) p q s r t
(A) Carbon-dioxide (p) Bacteria
(b) q r s p t
(B) Nitrogen fixation (q) ODS
(Ozone (c) t s r q p
Depletion (d) r t s q p
Substance)
Ans : (d) A-r, B-t, C-s, D-q, E-p
(C) CFCs (r) Green house gas
(Chlorofluorocarbons) 5.
(D) Decomposers (s) Acid rain
Column I Column II
(E) Oxides of nitrogen (s) Mineralization
(A) Deforestation (p) Human
and sulphur
interference is
minimum
A B C D E
(B) Natural ecosystem (q) Physicochemical
(a) r p q t s
atmosphere
(b) q p r s t
(C) Artificial ecosystem (r) Destroying
(c) p q r s t natural beauty
(d) t s q r p (D) Water (s) Increase soil
fertility
Ans : (a) A-r, B-p, C-q, D-t, E-s
(E) Humus (t) Expressed with
3. reference to mean
sea level
Column I Column II (F) Water table (u) Universal solvent
(A) Abiotic (p) Air, solar energy
components
A B C D E F
(B) Edaphic factors (q) Inorganic, organic
(a) p q r s u t
& climatic factors
(b) q r s p u t
(C) Biotic components (r) Topography, soil
texture (c) r p q u s t
(D) Continuous re- (s) Grasses, locusts, (d) p r s q u t
sources bacteria
Ans : (c) A-r, B-p, C-q, D-u, E-s, F-t
(E) Recyclable resource (s) Fossil fuel
(F) Non-recyclable (s) Metallic ores
5. ASSERTION AND REASON

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DIRECTION : In each of the following questions, a statement the process of water cycle. Water cycle is known to
of Assertion is given and a corresponding statement of Reason maintain the water level on the Earth.
is given just below it. Of the statements, given below, mark the
correct answer as: 6. Assertion : We will not be able to survive on the
Earth, if all plants become extinct.
(a) Both assertion and reason are true and reason is
Reason : Plants are the only source of oxygen in the
the correct explanation of assertion.
atmosphere.
(b) Both assertion and reason are true but reason is
not the correct explanation of assertion. Ans : (a) Both assertion and reason are true and
reason is the correct explanation of assertion.
(c) Assertion is true but reason is false.
We will not be able to survive on Earth, if all plants
(d) Both Assertion and Reason are false. become extinct because plants are the only source of
oxygen in the atmosphere. Only plants are able to
1. Assertion : Extensive use of CFCs increases the
release oxygen during photosynthesis.
chances of skin cancer.
Reason : CFCs deplete the ozone layer in stratosphere. 7. Assertion : Carbon dioxide maintains the heat balance
Ans : (a) Both assertion and reason are true and on the Earth.
reason is the correct explanation of assertion. Reason : Carbon dioxide has led to ozone depletion.
CFCs depletes the ozone layer, which absorbs harmful Ans : (c) Assertion is true but reason is false.
(ultraviolet) UV rays from Sun. UV rays penetrating Carbon dioxide maintains the heat balance on the
the surface of Earth leads to various disorders like Earth. It traps solar energy entering the Earth’s
skin cancer. surface and prevent the escape of heat from the Earth.
Whereas ozone depletion is due to incorporation
2. Assertion : Like Earth, Moon and Venus also have
of harmful non-bidegradable substances into the
atmosphere.
atmosphere called CFCs (Chlorofluorocarbons).
Reason : The atmosphere on Moon and Venus mainly
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Ans : (d) Both Assertion and Reason are false.
8. Assertion : Substances are transported from one part
Moon has no atmosphere. Atmosphere on Venus and
Mass have high percentage (approx 95%) of CO 2 while of the body to the other in a dissolved form.
atmosphere of our Earth consists of various gases like Reason : Water is a good solvent.
nitrogen (78%), oxygen (21%), carbon dioxide (0.03%) Ans : (b) Both assertion and reason are true but reason
and argon (0.91%). is not the correct explanation of assertion.
All cellular processes take place in a water medium.
3. Assertion : Carbon monoxide is less dangerous than All the reactions that take place within our body
carbon dioxide. and within the cells occur between substances that
Reason : Carbon monoxide is a non-poisonous gas. are dissolved in water. Water acts as a medium for
Ans : (d) Both Assertion and Reason are false. transportation of substances from one part of the
Carbon monoxide is more dangerous than carbon body to the other.
dioxide. It is a poisonous gas which leads to respiratory
9. Assertion : Lichens are indicators of pollution.
problems. It also causes giddiness, headache and
cardiovascular malfunctioning. Reason : Lichens grow mainly in polluted areas.

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Ans : (c) Assertion is true but reason is false.
Lichens are bio indicators of air pollution. They are
4. Assertion : Nodules are found only in the roots of sensitive to sulphur dioxide (SO 2) pollution in air that
leguminous plants. comes from automobiles and other sources. So, they
Reason : Rhizobium is a symbiotic bacteria that live cannot grow in polluted areas.
in the roots of legumes.
10. Assertion : Oxygen cannot get eliminated from the
Ans : (b) Both assertion and reason are true but reason atmosphere.
is not the correct explanation of assertion. Reason : Oxygen is a most abundant element on our
Root nodules are special structures present only in the Earth.
roots of leguminous plants, which provide shelter to
nitrogen-fixing bacteria (i.e., Rhizobium). Therefore, Ans : (c) Assertion is true but reason is false.
it is found only in roots of the leguminous plants. Oxygen is maintained in the atmosphere by oxygen
cycle. Oxygen from the atmosphere is used up in three
5. Assertion : Evaporation and transpiration maintain processes, namely combustion, respiration and in the
the water level on the Earth. formation of oxides of nitrogen. Oxygen is returned
Reason : Evaporation is loss of water from water to the atmosphere in only one major process, that is,
bodies whereas transpiration is absorption of water photosynthesis.
from roots of a plant. WWW.CBSE.ONLINE

Ans : (c) Assertion is true but reason is false.

Evaporation is loss of water in vapour form from the
water bodies whereas transpiration is also water loss
but from the leaves of a plant. Both contribute in

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