Which set of insects is beneficial to humans?

According to $NCERT$ text, which of the following are steps involved in the selection and testing of superior recombinants in plant breeding?

Crop rotation is used by farmers to increase

Consider the following statements:
$I$. Semen is preserved for artificial insemination by heating.
$II$. The most common bee species reared in India is $Apis$ $indica$.
$III$. An example of interspecific hybridization is a mule.
Which of the statements given above is/are not correct?

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

The world's $P$ livestock is possessed by $Q$ and the contribution to the world farm produce is $R$.
$\quad P\quad\quad Q\quad\quad\quad\quad\quad R$
$(A)$ $70 \%\quad$ India and China $\quad 25 \%$
$(B)$ $70 \%\quad$ India and America $\quad 25 \%$
$(C)$ $30 \%\quad$ India and China $\quad 75 \%$
$(D)$ $30 \%\quad$ India and America $\quad 75 \%$