Importance of Air

We will learn about the importance of air in our life.

We know that air is all around us. It is present everywhere on the Earth.

Note: There is no air on the moon.

We cannot see air but we feel it when it blows. As we know that when air blows, it is called wind. When the wind blows gently, it is known as a breeze. When the wind blows very fast, it is called a gale. When the wind blows extremely fast and it rains heavily, it is called a storm. A storm can destroy even heavy and strong objects.

We know that all living things need air for breathing. Air contains some important gases like oxygen, carbon dioxide, nitrogen, etc. All living things use oxygen to breathe in. Plants take carbon dioxide from air to make their food. Air also contains water vapour, smoke, dust and germs.

Power plants, factories and vehicles give out smoke and some harmful gases that pollute the air. Dust and some harmful chemicals pollute the air. This polluted air is harmful for us to breathe as it causes breathing problems.

How should we keep the air clean?

Air can be cleaned by planting more trees. Plants use carbon dioxide during photosynthesis. They give out oxygen for us to breathe during the day.

We should check our vehicles on a regular basis to control the smoke given out by vehicles. If all of us do so our air will be cleaner.

Factories and industries producing various things should ensure that the smoke and harmful gases are made less harmful before releasing them in our atmosphere.

Note: Air contains many useful gases but it does not contain hydrogen which is also an important gas.

Materials, Water and Air

Water and Air

Importance of Air

Importance of Water

Third Grade

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