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8.Microbes in Human Welfare
normal
Which of the following plants are used as green manure in crop fields and in sandy soils
A
Dicanthium annulatum and Azolla pinnata
B
Crotalaria junecea and Alhagi camelorum
C
Calotropis procera and Pitylanthus niruri
D
Saccharum munja and Lantana camara
(AIPMT-2003)
Solution
It’s obvious.
Standard 12
Biology