Question

In the nitrogen cycle, what do bacteria that live on the roots of plants do?

Answer 1

In the nitrogen cycle, the bacteria that live on the roots of plants, or in the soil, are called nitrogen-fixing bacteria.

Explanation:

Plants need nitrogen-fixing bacteria because plants cannot use nitrogen directly from the air. That's where the nitrogen-fixing bacteria comes in. The nitrogen-fixing bacteria are responsible for changing the nitrogen gas into ammonia, which is the nitrogen-containing nutrient that plants need for growth. This process is called nitrogen fixation.