How do plants use nitrogen when they are growing?



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    Nitrogen makes up 78 percent of the earth’s atmosphere and is essential to healthy plant growth. Without it, green plants are weak and smaller than they should be. Too much nitrogen, on the other hand, makes plants unable to withstand frosts or heavy winds. While many chemical fertilizers contain nitrogen, there are also natural sources of the element that do not put the environment at as much risk for pollution.

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