Question

4. Why is nitrogen fixation so important?
O A. Symbiotic soil microbes convert nitrogen gas to a form that the plants can use.
O B. Symbiotic soil microbes add nitrogen to the air so the plants can use it.
O C. Nitrogen is scarce around farmlands
O D. Symbiotic soil microbes make an enhanced form of nitrogen that's better than what the plants normally use

Answer 1

Answer:

Symbiotic soil microbes convert nitrogen gas to a form that the plants can use (NH4+ or NO3-)

Answer 2

Nitrogen fixation is important because:

A. Symbiotic soil microbes convert nitrogen gas to a form that the plants can use.

Nitrogen fixation:

Nitrogen fixation is the process by which nitrogen is taken from its molecular form (N₂) in the atmosphere and converted into nitrogen compounds useful for other biochemical processes. The role of nitrogen-fixing bacteria is to supply plants with vital nutrients that they cannot obtain from the air themselves. to combine chemically with other elements to form more-reactive nitrogen compounds such as ammonia.

Thus, option A is correct.

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