On earth the largest reservoir of nitrogen is

Options :
  1. the oceans
  2. granite rocks
  3. the air
  4. the soil

Answer and Explanation :-

Answer: Option 3


Sorry there is no explanation for this answer. Please help others by posting your response below

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : The fixation of nitrogen in the root nodules is an example of

Next Question : Organisms that fix nitrogen in aquatic habitats are

Click here for free online test on Physiology


 (Getemail alerts when others member replies)

Life is full of misery, loneliness, and suffering - and it's all over much too soon.
-Woody Allen