Question

which of these sentences is true about nitrogen? a- as nitrogen is the rarest gas in the atmosphere, very few organism 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.

Answer 1

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%