Which of the statements regarding the nitrogen cycle is true? choose 1 answer: choose 1 answer: a animals obtain nitrogen through the process of cellular respiration. b atmospheric nitrogen is absorbed through the leaves of plants. c nitrogen fixation is the process atmospheric nitrogen is converted into biologically usable forms. d denitrification occurs when a nitrogen containing compound is produced from nitrogen in the soil?

The nitrogen cycle can be defined as the process by which the nitrogen is being recycled. The nitrogen is transferred from the atmosphere to the plants and then from plants to animals, human beings.

Then from animals and human beings it is again transferred into the soil and then atmosphere.

The nitrogen that is found in the sol is not in the usable form by the plants, nitrogen fixing bacteria converts it into usable form.

rohitdip2808 rohitdip2808 · Answer 2 · 2021-10-05T13:16:31+02:00

Answer:

Option c. "Nitrogen fixation is the process atmospheric nitrogen is converted into biologically usable forms" is correct.

Explanation:

Nitrogen fixation is the part of the nitrogen cycle in which atmospheric nitrogen is converted into nitrate, nitrite, and carbonic nitrogen compounds by bacteria that are present in the root nodules of legume plant plants.

The nitrate again converts into nitrogen gas by denitrifying microbes in anaerobic conditions called denitrification.

The animals doesn't obtain nitrogen through the process of cellular respiration. Respiration involves with energy production where only oxygen and carbon dioxide are involved.

Leaves of plants doesn't absorb nitrogen from the atmosphere instead the nitrogen is consumed through roots.

Denitrification is the process of removal of nitrogen and its compounds.

Therefore, options a, b, and d are incorrect and option c is correct.

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