The toxicants which kill the pests on coming in direct contact are known as

From which plant is a liquid wax obtained that has properties equivalent to sperm whale oil?

$A$ large number of people become victims of hidden hunger in India. What is the primary reason for this?

Which of the following is considered a pest?

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 $\quad 75 \%$

$IVRI$ and $IARI$ are associated with which of the following respectively?