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.

D. Plants can't use N2 from the air

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 :)

•All living things are composed of cells.

•Cells are the basic units of structure and function for living things.

•All cells come from pre-existing cells. Also, organisms grow by “adding on more cells” NOT by increasing the size of their cells.

Explanation:

I HOPE IT HELPS

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♤Captaingenius♤