Which region is considered the secondary center of origin for coffee production?

Blue revolution:
$I$. It is the rapid expansion of intensive commercial aquaculture.
$II$. It aims to increase global food production and reduce widespread hunger.
Which of the statements given above is/are correct?

Which of the following pesticides have been successfully used in the control of locusts and grasshoppers in India?

Bombykol or gyplure is a

What is the advantage of growing crops in a monoculture?

Heterosis (hybrid vigor) is desirable in vegetatively propagated plants because...