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Conduct a discussion on how nitrogen cycle benefits plants and animals. |
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Answer» Nitrogen cycle helps to maintain the level of nitrogen in the atmosphere stable. During lightning nitrogen in the atmosphere combines with oxygen and forms nitric oxide. This nitric oxide combines with oxygen again to form nitrogen dioxide Nitrogen dioxide in the presence of oxygen dissolves in rainwater and reaches earth as nitric acid. This nitric acid combines with compounds present in earth and changes them to nitrates. Plants absorb this nitrates easily. Through plant products, nitrogen reacts animals also When plants and animals decay nitrogen again reaches the atmosphere this process goes on continuously. So the amount of nitrogen is kept constant. |
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