Which are greenhouse crops?

Assertion $A$: The use of honey as a medicine is well-known.
Reason $R$: The use of honey as a cosmetic is well-known.
Which option is correct for Assertion $A$ and Reason $R$?

Pusa Sem-$2$ is resistant to which of the following pests?

The Green Revolution succeeded in increasing the yield of crops mainly due to the use of:
$I.$ Improved varieties of crops
$II.$ Agro-chemicals (fertilizers and pesticides)
$III.$ Better management practices
Choose the correct option.

Which of the following statements is incorrect?

Which is the primary source for food and fodder?