Question

Which is the best reason for why the nitrogen cycle is an important biogeochemical process? a. Nitrogen is an essential part of biological molecules such as proteins and nucleic acids (DNA). b. Nitrogen is a crucial part of the process of photosynthesis. c. Nitrogen is the most toxic element to living organisms. d. Nitrogen is the largest element by percentage in our atmosphere.

Answer 1

Answer:

Although all of the options are important but the best reason is

a) Nitrogen is an essential part of biological molecules such as proteins and nucleic acids (DNA).

Explanation:

• Nitrogen is an essential component of building blocks of life that are DNA, RNA and Protein. It is also needed for the production of chlorophyll. We can say there would be no life without nitrogen.
• Air we breathe is 78% nitrogen but that is in inert form (N2) and we can't use it.
• Nitrogen cycle is the process by which nitrogen circulates into various forms of nature and it make the nitrogen useful to carryout life.