Name: Oxygen All Around Us!
Uploaded: 2019-07-19
Duration: 5 min 2 s
Description: All organisms use oxygen present in the air for respiration. But, how do the organisms living in water and under the ground breathe when there is no air? Let...

Question

Match the following.

Column A	Column B
1) Nitrogen	a. Interdependent in nature
2) Oxygen	b. Carbon dioxide
3) Photosynthesis	c. Decreases on heating
4) Windmill	d. $21 %$ of air
5) Plants and animals	e. Run flour mills
6) The solubility of air in water	f. $78 %$ of air

Accepted Answer

The nitrogen is present in an abundant amount in the air ( $78 %$ ). It does not support the process of burning.

The oxygen is present in the air ( $21 %$ ). It is produced during photosynthesis by green plants and is used by all organisms for respiration.

Plants prepare food by the process called photosynthesis. They take carbon dioxide and give out oxygen in the atmosphere.

Moving air is used to turn the blades of the windmill. It is used to run flour mills and to generate electricity.

Plants use carbon dioxide, give out oxygen and animals use oxygen, give out carbon dioxide so their balance is interdependent in nature.

Amount of air that can be dissolved in water decreases with temperature (heat) and increases with pressure.

Column A Column B

1) Nitrogen f. $78 %$ of air

2) Oxygen d. $21 %$ of air

3)Photosynthesis b. Carbon dioxide

4) Windmill e. Run flour mills

5) Plants and animals a. Interdependent in nature

6) The solubility of air in water c. Decreases on heating

Match the following.

Column A Column B

1) Nitrogen a. Interdependent in nature

2) Oxygen b. Carbon dioxide

3) Photosynthesis c. Decreases on heating

4) Windmill d. $21 %$ of air

5) Plants and animals e. Run flour mills

6) The solubility of air in water f. $78 %$ of air

Important Questions on Air Around Us

Learn and Prepare for any exam you want !

Match the following. Column A Column B 1) Nitrogen a. Interdependent in nature 2) Oxygen b. Carbon dioxide 3) Photosynthesis c. Decreases on heating 4) Windmill d. 21% of air 5) Plants and animals e. Run flour mills 6) The solubility of air in water f. 78% of air

Important Questions on Air Around Us

Learn and Prepare for any exam you want !

Match the following.

Column A Column B

1) Nitrogen a. Interdependent in nature

2) Oxygen b. Carbon dioxide

3) Photosynthesis c. Decreases on heating

4) Windmill d. $21 %$ of air

5) Plants and animals e. Run flour mills

6) The solubility of air in water f. $78 %$ of air