The green revolution succeeded in tripling the food supply but yet it not enough to feed the growing human population increased have mainly been due to the use of
a Improve crop varieties
b better management practices
c agrochemicals (fertilizers and pesticides)

Options

A. a and c
B. b and c
C. a only
D. a,b and c

Answer

B

Explanation

The green revolution succeeded in tripling the food supply but yet it was not enough to feed the growing human population increased yield have mainly been due to the use of better managenment proctices and agrochemicals (fertilisers and pesticides ) but partly been due to the use of imporved crop varietites