Worksheet Air
DAV PUBLIC SCHOOL ,CHANDRASEKHARPUR ,BBSR-21
WORKSHEET- 10 CLASS V CHAPTER:AIR
Name:............................................
Section:..........................Roll No..................
A. Choose the
most appropriate answer
i) Name the gas
which helps in burning.
a)Hydrogen b)Nitrogen c)Oxygen d)Carbon
dioxide
ii) Name the gas
which burn itself
a)Hydrogen b)Nitrogen c)Oxygen d)Carbon
dioxide
iii) Which gas extinguishes fire?
a)Hydrogen b)Nitrogen c)Oxygen d)Carbon
dioxide
iv) Which of the
following is not a green house gas
a)Hydrogen b)Water vapour c) Methane d)Carbon
dioxide
v)The components of which are
harmful to living beings are
a)Nitrogen and
carbon dioxide b)dust and water vapour
c)Dust and smoke d)smoke and water vapour
vi) Which of the following statements is incorrect?
a) All living
things require air to breathe. b)
We can feel air but we cannot see it
c) Moving air
makes it possible to fly a kite. d)Air
is present everywhere but not in soil.
vii) Which of the following components of air is present in the
largest amount in the atmosphere?
a)oxygen b)Carbon dioxide c)water vapour d)hydrogen
viii) Which of the following components of air increase or decrease
depending on weather conditions.
a)oxygen b)Carbon dioxide c)Water Vapour d)Nitrogen
ix) Name the life process which reduces carbon dioxide from the
atmosphere.
a)Photosynthesis b)respiration c)Transpiration d)digestion
x) Name the life process which oxygen in the the atmosphere.
a)Photosynthesis b)respiration c)Transpiration d)digestion
xi) The layer of ozone present in between: ---
a)Exosphere and ionosphere b)Troposphere & Stratosphere c)Stratosphere and mesosphere d)None of these
xii) Oxides of
which of the following gases cause acid rain?
a)Sulphur &
hydrogen b)Nitrogen &Phosphorous)Nitrogen & Sulphur d)None of these.
B. Fill in the
blanks;
i)
.................. called the shield of atmosphere.
ii)The extra
increase in the average temperature of earth due to green houses gas is called
iii)......................life process in plant and ....................
life process in animal collectively maintained the balance of carbon dioxide
and oxygen.
iv)
...................... is an example of solid pollutants.
v)...............................
is an example of gaseous pollutant.
vi)The amount of
water vapour present air determines
the ............... of air.
vii)........................
phenomenon helps the earth to stay suitably warm.
viii) The common
properties of carbon dioxide, methane and water vapour is trap...............
ix. Smoke and
fog combine together to form..........................
x) Air is a
........... of some gases.
xi.
................... gas present in the atmosphere, protect us from the harmful
radiation sun light.
C. State whether
the following statements are true or false. If false, correct them.
i) Plants
consume oxygen for respiration.
ii) Hydrogen
present in is essential for the growth of plants, development fruit &seeds
and increase the quality of leaf.
iii) Plants can
utilised nitrogen in form iodised salt.
iv) Smoke, dust
and germs are solid pollutants.
v) We should not
cover our nose and mouth while sneezing or coughing.
vi)Carpool
reduces the amount smoke emission.
D. In the boxes
of column –I the letters of some words got jumbled .Arrange them in proper form
in the boxes given in column-II .
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COLUMN-I
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COLUMN-II
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1
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T
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U
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D
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S
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2
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Y
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N
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O
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X
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E
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G
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3
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M
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E
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K
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O
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4
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R
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A
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A
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C
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N
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I
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D
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5
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L
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L
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P
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U
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O
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T
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N
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T
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S
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A
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6
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Z
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O
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N
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O
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Z
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7
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I
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M
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U
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I
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D
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Y
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T
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H
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8
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I
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H
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C
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M
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N
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E
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Y
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E. Define the
following terms.
a)Air pollution
. b) Global warming c)Acid Rain d)Green house effect. e) Pollutants f)humidity .
(Write the following
questions in class work copy)
G.Answer the
following questions.
I) write two harmful effects of ozone
depletion.
ii) Write four
harmful effects of acid rain.
iii) Write one
advantages of green house effect.
iv) Write 5
harmful effects of global warming.
v) Write some
good habits which can reduce air pollution.
vi)How does
regular check-up of vehicles help in reducing air pollution.
vii) Give
reasons ozone is called shield/blanket/umbrella of earth.
H. Make sentence
using thee given set of words.
i)99%,oxygen,nitrogrn,air,together.
ii) Respiration,
dissolved, animals, air, aquatic.
iii)CFC,
depletion, ozone layer, causes.
I. Write just a
few sentences for an imaginary situation if any of the following gases/gas disappears
from the atmosphere
i) Oxygen ii)Nitrogen
iii)green house gases.
J.Match the
following.
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A
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B
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Answer
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(a)shield of earth
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i)Nitrogen
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(a)-
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(b)Global warming
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ii)oxygen
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(b)-
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(c)Photosynthesis
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iii)ozone
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(c)-
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(d)Acid Rain
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iv)sulphur
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(d)-
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(e)Plant Growth
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v)methane
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(e)-
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(f)Respiration
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vi)Carbon dioxide
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(f)-
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