Organic farming does not include

Identify the incorrect statement.

Identify the mismatched pair.

Which plant is useful as green manure?

Identify the incorrect statements from the following:
$(i)$ Increasing milk production capacity is an objective of animal breeding.
$(ii)$ Breeds of each domesticated animal show variations in their characteristics.
$(iii)$ Out-crossing involves breeding between a male and a female of two different species.
$(iv)$ $A$ mule is an example of interspecific hybridization.

Which organisms are primarily included as pests?