Question

The air is 80% Nitrogen, in what form do organisms use nitrogen?

Answer 1

Answer:

Plants use Nitrogen from the soil

Explanation:

They use it for nutrients

Answer 2

Answer:

Nitrogen in the air

Explanation:

The Earth's atmosphere contains almost 80 % nitrogen gas. It cannot be used in this form by most living organisms until it has been fixed, that is reduced (combined with hydrogen), to ammonia.