FORESTS HELP IN PURIFYING AIR
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Forests are rich in plants and animals. All plants and animals take in air to survive.
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Green plants take in carbon dioxide of the air to manufacture their own food (photosynthesis) and release oxygen as a by-product.
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Forests also serve as a sink for carbon dioxide given out by plants and animals during respiration; produced by burning coal and petroleum; given out as a result of volcanoes and other natural disasters.
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Thus, forests help to maintain the levels of oxygen and carbon dioxide of the air.
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Forests, especially rainforests, are referred to as the 'lungs' of the Earth.
