Which of these sentences is true about nitrogen?

A. As nitrogen is the rarest gas in the atmosphere, very few organisms can use it directly.
B. Even though nitrogen is an abundant gas in the atmosphere, very few organisms can use it directly.
C. Even though nitrogen is an abundant gas in the atmosphere, no organisms can use it directly.

b is true because plants can only use nitrogen in the form of nitrates, no other living thing needs nitrogen therefore the percentage of nitrogen in the atmosphere is 79%

Answered by TheAronDavies | 2024-06-24

b- even though nitrogen is an abundant gas in the atmosphere, very few organisms can use it directly

Answered by aeh589 | 2024-06-24

The correct statement about nitrogen is B: Even though nitrogen is an abundant gas in the atmosphere, very few organisms can use it directly. This is because most living organisms cannot utilize nitrogen in its gaseous form and rely on processes that convert it into compounds they can absorb. Ultimately, nitrogen must be 'fixed' by certain bacteria before it becomes biologically available to plants and, subsequently, to animals.
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Answered by TheAronDavies | 2024-10-01