Question

8. Why is nitrogen used in fertilizer when there's so much N, in the air?

O A. There's relatively little air underground.
O B. Ny is toxic to plants.
O C. It's a macronutrient, while gaseous N is a micronutrient.
O D. Plants can't use N2 from the air.

Answer 1

i think its c

Step-by-step explanation:

hope it helps

Answer 2

D. Plants can't use N2 from the air

Step-by-step explanation:

Plants do not and cannot get their N2 directly from the air. Plants get their N2 through a cycle called Nitrogen Fixation.

This means plants need the nitrogen in the soil to consume it and get value from said nitrogen.

Hence, D. Plants can't use N2 from the air, is correct.

Hopes This Helps :)