Questions
Some blue – green algae can be used as biofertilizer as they are
a
secreting some chemicals that prevent the growth of any other plants near it.
b
rich in toxic alkaloids.
c
growing every where.
d
capable of fixing nitrogen.
detailed solution
Correct option is D
Cyanobacteria contains heterocyst and are capable of fixing nitrogen. So they can enrich the soil with nitrogen and hence it is used as a biofertilizer.Talk to our academic expert!
Similar Questions
Read the following statements and identify the organisms.
(a) They have chlorophyll a similar to green plants.
(b) They often form blooms in polluted water bodies.
(c) They can fix atmospheric nitrogen.
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