During achieving ''Green Revolution '' increased yields are mainly due to .
(I) Improved crop varieties .
(II) Better management paractices .
(III) Use of agrochemicals .

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 varities b better management practices c agrochemicals (fertilisers and pesticides

Assertion: Geen revolution succeeded in tripling the food supply Reason :It is mainly due to the use of better management practices use of agrochemicals

Use of genetically modified crops is a possible better solution for increases yields because . (I) Agrochemicals are too expensive . (II) Agrochemicals show harmful effects on the enviroment. (III) Conventional breeding methods are not sufficient . Correct answer is .

Assertion : All our major food crops are derived from domesticated varieties. Reason : Better management practices and increases in acreage can increases yield, but only to a limited extent.