Question

List the importance of air.

Accepted Answer

Air is important for all the living organisms. Without air no life can exist on the earth. We take in oxygen from the air and release carbon dioxide. Plants in turn use carbon dioxide present in the air to produce their food.

Water Cycle - Water vapour present in the air is important for the formation of water cycle. Water from the water bodies such as rivers and oceans evaporates and becomes water vapour.

Supplies Energy - We breathe oxygen present in the air and it is supplied to the cells in our body. Body cells burn the food molecules with the help of oxygen and produce energy.

Useful for plants - Nitrogen present in the air is useful for plants. The nitrogen in the atmosphere is converted into easily absorbable nitrates by plants with the help of some microbes. It is known as nitrogen fixation.

Transport - Movement of air is called wind. This is helpful for the ships and boats to sail on the water. Aeroplanes and helicopters travel through the air.

Parachutes and Hot air balloons - Parachutes and hot air balloons are used to land from above. In case of emergency, people use parachutes and come down slowly and safely with the help of air.

Wind energy - Air flows from a region of high pressure to low pressure. This flow of air at high speed is called wind. This wind is used to generate electric power with the help of wind mills.

List the importance of air.

Important Questions on Air

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