During the period $1960$ to $2000$,wheat production increased from $.....X......$ million tonnes to $.....Y......$ million tonnes.

Crop cultivation was first started in

Which are the top five cereals in the world in terms of annual production?

Which of the following statements is true regarding pests?

Which state has the highest production of sugarcane in India?

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.