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Worksheetsair around us
Total questions: 11
Worksheet time: 22mins
Which gas in the atmosphere is essential for respiration?
(a)
The component of air used by green plants to make their food, is………………….
(a)
The components of air which is taken by Plants to prepare the food?
(a) O2
(b) N2
(c) CO2
(d) None of these
A
B
C
D
Which of the following is NOT present in air?
(a) Oxygen
(b) Nitrogen
(c) Helium
(d) Iron
A
B
C
D
What is not true of Air?
(a) It is odorless and colorless
(b) It occupier space and has weight
(c) it can be compressed and stored
(d) None of these
A
B
C
D
Statement A: Nitrogen is used in protein synthesis
Statement B: Proteins are required by living organisms to grown and repair their body parts
(a) Statement A is correct only
(b) Statement B is correct only
(c) Both the statement is correct
(d) Both the statement are incorrect
A
B
C
D
Which of the following gas helps in burning? ,
(a) Nitrogen
(b) Oxygen
(c) Carbon dioxide
(d) Carbon monoxide
A
B
C
D
Air is present in
(a) atmosphere
(b) soil
(c) water of ponds, lakes and seas
(d) everywhere
A
B
C
D
Envelope of air that surrounds the earth is known as
(a) biosphere
(b) atmosphere
(c) environment
(d) ecosystem
A
B
C
D
Which property of air is shown in the image
Bottle is soluble in water
Air is dissolved in water
No air is present in water
None of the above
Warm air is.................as compared to cold air.
Heavier
Lighter
no change
none of the above
