Question

9th standard, Science, Give Scientific reson, Write important process in the nitrogen cycle. Give scientific reason answer​

Answer 1

Answer:

Important processes in the nitrogen cycle include Nitrogen fixation, ammonification, nitrification, and denitrification.

Explanation:

The conversion of nitrogen gas (N2) into nitrates and nitrites through atmospheric, industrial and biological processes is called nitrogen fixation.

The conversion of ammonium to nitrate is performed primarily by soil-living bacteria and other nitrifying bacteria.

The conversion of ammonium to nitrate is performed primarily by soil-living bacteria and other nitrifying bacteria

Denitrification is the reduction of nitrates back into nitrogen gas (N2), completing the nitrogen cycle

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Answer 2

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There are five stages in the nitrogen cycle, and we will now discuss each of them in turn: fixation or volatilization, mineralization, nitrification, immobilization, and denitrification.

Nitrogen cycle

The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into multiple chemical forms as it circulates among atmosphere, terrestrial, and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes. Important processes in the nitrogen cycle include fixation, ammonification, nitrification, and denitrification. The majority of Earth's atmosphere (78%) is atmospheric nitrogen,[16] making it the largest source of nitrogen. However, atmospheric nitrogen has limited availability for biological use, leading to a scarcity of usable nitrogen in many types of ecosystems.

Processes:-

• Marine nitrogen cycle
• Human influences on the nitrogen cycle
• Consequence of human modification of the nitrogen cycle.

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