Question

1)which gas is exchanged in our lung
2) where does the blood absorb oxygen in the human body
3) name the red pigment in blood which carries oxygen in the human body
4) name the opening in our body through which we inhale air
5) name one bad habit which can cause lung cancer
6) what is the average breathing rate of human adult at rest
7) name the air tube of insects
8) name the small opening (holes) on the side of the body of an insect
9) name the tiny pores on the surface of leaves of a plant through which gas exchange occurs
10) name any two part of plant through which exchange of gases takes place during respiration
11) from where do roots absorb air needed for respiration

Answer 1

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