Question
Biology Question on Microbes in human welfare
Aquatic fern is used to increase the yield in paddy crop:
A
Azolla
B
Salvinia
C
Marsilea
D
Isoetes
Answer
Azolla
Explanation
Solution
The aquatic fern used to increase the yield in paddy crops is Azolla. Azolla is a floating fern that can fix atmospheric nitrogen, providing a natural source of nitrogen to rice paddies.
So, the correct option is (A): Azolla