Question

3 H. The layer of air around the earth is known as
7. The component of air used by green plants to make their food, is
8. List five activities that are possible due to the presence of air.
9. How do plants and animals help each other in the exchange of gases in the
atmosphere?​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

3. atmosphere

4. oxygen

5.(a) we can live .

(b) plants prepare their own food so that we can eat it.

(c)animals can survive.

6.Animals release carbon dioxide during respiration. Plants use the carbon dioxide which is released by the animals

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