Question

Which of the following symbiotic association is not useful as biofertilizer [MHCET 2002]
A) Rhizobium and leguminous roots
B) Algae and fungi
C) Azolla and Anabaena
D) Roots of higher plants and fungi

Answer 1

l think that the answer is algae and fungi

Answer 2

Explanation:

....., b is correct I think....