Nitrogen fixation occurs when which of the following happens? -Plants break down the nitrogen and use it as a nourishing sugar.
-Plants absorb the nitrogen from both the soil and the air.
-Bacteria absorb nitrogen and release it as carbon dioxide.
-Bacteria convert nitrogen to a form that plants can use.

Bacteria convert nitrogen to a form that plants can use.

Explanation:

Just took the quiz.

d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer

mammals. mammals of the piedmont region live in several habitats such as wetlands, fields and forests. raccoons live across the state including the piedmont. they've adapted to environmental changes, including the loss of natural habitat.