Answered

How do plants get the nitrogen they need to grow?

A. They create it during respiration.
B. They absorb nitrogen through their roots.
C. They create it during photosynthesis.
D. They absorb nitrogen gas from the atmosphere.



Answer :

GinnyAnswer

Final answer:

Plants obtain nitrogen for growth by absorbing nitrogen-containing compounds from the soil, facilitated by nitrogen-fixing bacteria in root nodules.


Explanation:

Plants absorb nitrogen from compounds present in the soil like nitrates and nitrites, not directly from the atmosphere as nitrogen gas.

Nitrogen fixation, carried out by nitrogen-fixing bacteria, changes nitrogen gas into nitrates, making it available for plant absorption through their roots.

Some plants form a symbiotic relationship with nitrogen-fixing bacteria in root nodules, enhancing nitrogen absorption to support their growth.


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