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Worksheetsair parts
Total questions: 19
Worksheet time: 11mins
Human biengs cannot live without___ for more than___.
argon,2000 days
air,20 hours
corbon dioxide,5 days
air,few minutes
(a) is an important gas for plants
Air is a mixture of_____and______
water,neon gas
many gases,tiny dust particles
nitrogen,soil
what are the layers of atmosphere?
argon,nitrogen,air,stratosphere and helium
troposphere,stratosphere,mesosphere,thermosphere and exosphere
nitrogen,oxygen,argon,carbon dioxide and dust
changes in the weather occur in (a)
Mark two of the given uses of nitrogen.
living beings do not use nitrogen directly from the air
this is the first layer above the earths surface
plants get this nitrogen with the help of bacteria in the soil
it is a part of inhaled air or inpired air
write the work of mesosphere (in one sentence)
(a)
(a) does not let a candle burn.
which gas is used for light tubes to glow?
(a)
The air we breathe contains 21% nitrogen
True
False
the most important gas for survivle is (a)
The amont of water vapour present in the air is called humidity?
True
False
Ozone gas is present in this layer
Strotospher
Mesosphere
Thermosphere
None of them
Oxygen is taken by (a) to our lungs
On mountain tops or in deep sees we need to carry
Carbon dioxide cylender
Oxygen cylender
Nitrogen cylender
None of them
The atmosphere is divided into____ layers
9
7
2
5
The air we breathe out is called (a)
Which air has a higher percentage of carbon dioxide?
Inhaled air
Exhaled air
Moving air
The thick __ of air that surrounds our lanet is called__
(a)
