(b) In the given diagram label the arrows and indicates the direction of:
i. Movement of air.
ii. Movement of diaphragm.
iii. Movement of ribs.
iv. Name the gas present in the air, which is essential for aerobic respiration.
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attach the diagram please
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njwkaijqjqjajaajabwh sgwjajajahsbsnsnsnsns
sorry I want points
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