The White Revolution is associated with which industry?

Identify the correct statement.

$A$ : Hybrid seeds have to be produced every year because seeds collected from hybrid plants,if sown subsequently,do not maintain hybrid characters.
$R$ : Hybrid seeds show segregation of traits.

Which of the following has been recently used for increasing the productivity of super milch cows?

In $MOET$,an animal is mated with an elite bull or artificially inseminated. The fertilized eggs are then recovered and transferred to surrogate mothers. Which of the following statements is correct regarding this process?

How do microorganisms harm the crop?