Air that shields the earth from certain harmful rays of the sun
Air is very important for us. Without air the earth would be lifeless. We should all die of suffocation if we don’t have enough air to breathe. The mountaineers have to carry oxygen cylinders because the air at high altitudes is very thin and is not enough for several. The oxygen cylinder’s help them breathe properly. In fact, all living things, animals and plants need air to stay alive. People have lived for more than a month without food and more than a week without water, but a person can live only a few minutes without air.
Air does much more as it is that air that shields the earth from certain harmful rays of the sun and other objects in the outer space. At the same time, air traps much of the heat that comes from the sun. In this way, air helps keep the earth warm enough to support life. Clouds that form high up in the air bring us water in the form of rain and snow. All living things must have air and water to live.
Tags: Air , Shields , The Earth , Certain , Harmful Rays , The Sun
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