Which of the following is an oil-yielding crop?

$Leucaena leucocephala$ is:

From which of the following does India earn the most foreign exchange?

What is a young chicken raised specifically for meat production called?

In an experiment,freshly hatched larvae of an insect (Khapra beetle) were reared on a basal diet (complete diet without cholesterol) with increasing amounts of cholesterol. Results obtained are shown in the given graph.
The graph indicates:

Statement $P$: New varieties are developed through processes like grafting,tissue culture,cloning,and hybridization.
Statement $Q$: It provides necessary information regarding the identification of collected,certified,and newly discovered plant specimens.