Question

Consider the following organisms:
1. Agaricus
2. Nostoc
3. spirogyra
Which of the above is/are used as biofertilizer/biofertilizers?
A) 1 and 2
B) 2 only
C) 2 and 3
D) 3 only

Answer 1

it should be option a according to me

Answer 2

hello dear..................

B) Only 2

hope it's useful

thank you.................