Multiple choice

Which of the following are free living aerobic asymbiotic nitrogen fixing bacteria? P. Azotobacter Q. Klebsiella R. Clostridium S. Rhizobium Select the correct answer using codes given below:

  1. P and Q

  2. P and R

  3. P and S

  4. Q and R

  5. R and S

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Bacteria which convert atmospheric nitrogen into compounds of nitrogen are called nitrogen fixing bacteria. Azotobactor and klebsiella are examples of free living aerobic asymbiotic nitrogen fixing bacteria.