ExercisesAnswer the following in not more than 20 words.1. Why do air bubbles come out when soil is added to water?2. Why is the presence of air in the soil essential for plants?3. Name two elements and two compounds which are present in air4. Nam5. Is the composition of air strictly fixed?6. Where would you expect a higher proportion of carbon dioxide in air?7. In which season would you expect a higher proportion of water vapour ie two major components of air and their approximate proportions.&. Which gas is formed when carbon is burnt in alr?

ExercisesAnswer the following in not more than 20 words.1. Why do air

1.	ExercisesAnswer the following in not more than 20 words.1. Why do air bubbles come out when soil is added to water?2. Why is the presence of air in the soil essential for plants?3. Name two elements and two compounds which are present in air4. Nam5. Is the composition of air strictly fixed?6. Where would you expect a higher proportion of carbon dioxide in air?7. In which season would you expect a higher proportion of water vapour ie two major components of air and their approximate proportions.&. Which gas is formed when carbon is burnt in alr?
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