Practice Important Questions for Class 6 Chapter 15 Science Air Around Us
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Question 1
The components of air which is taken by Plants to prepare the food?
(a) O2
(b) N2
(c) CO2
(d) None of these
Question 2
Which of the following is NOT present in air?
(a) Oxygen
(b) Nitrogen
(c) Helium
(d) Iron
Question 3
Which gas is produced by plants during photosynthesis?
(a) Nitrogen
(b) Carbon Dioxide
(c) Hydrogen
(d) Oxygen
Question 4
What are the users of Oxygen?
(a) Living being
(b) Combustion of fuel
(c) Rusting of iron
(d) All the above
Question 5
The % of Nitrogen in Air is?
(a) 20
(b) 70
(c) 79
(d) 1
Question 6
The presence of water vapor is Air is important for
(a) Water Cycle
(b) Ozone layer
(c) Combustion
(d) None of the above
Question 7
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
Question 8
The % of Oxygen in Air is?
(a) 20
(b) 70
(c) 79
(d) 1
Question 9 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
Question 10
(p)Photosynthesis
(u) Produce oxygen
(q)Respiration
(v) Absorb oxygen
(w) Produce CO2
(x) absorb CO2
(a) P -> V, X Q -> V, W
(b) P -> V, W Q -> V, X
(c) P -> V, W Q -> V, X
(d) None of these