Question

What is the role of nitrates in the cycle?It is used by animals for atmospheric nitrogen.It is used by bacteria to synthesize ammonia.It is used by animals for carbohydrate synthesis.It is used by plants for protein synthesis.

Answer 1

Nitrate (NO₃⁻) is one of the forms of nitrogen that can be assimilated by plants and other microorganisms, even more, is contained in several fertilizers, so taking this into consideration we can say that the last option is the correct answer.