crakgd7ivieLeck
crakgd7ivieLeck
04-08-2016
Biology
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why forest are named as lungs ?
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sabr123
sabr123
04-08-2016
Forests have been called the 'lungs of the earth' because growing trees take carbon dioxide out of the air and replace it with oxygen. This is vital for humans, as we need oxygen in the air to breathe.
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