Identify the correct statements:
$(i)$ Modern techniques are implemented to increase the production of plants and animals in marine habitats.
$(ii)$ Catla,Rohu,Mrigal,Hilsa,and Major Carps are types of fish.
$(iii)$ Hilsa,Sardines,Rohu,and Mrigal are marine edible fish.
$(iv)$ Fisheries can be of saltwater or freshwater types.

Which crops were introduced to India from the New World?

Name the crop which had its birth place in Tropical America but now the centre of production is Mid-west $USA$.

Which of the following cereals is a pseudocereal?

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 $\quad 75 \%$

Consider the following statements:
$I$. The progeny of cross-breeding may be used for commercial production.
$II$. In case of artificial insemination,the semen can be used immediately or can be frozen for later use.
$III$. Controlled breeding experiments are carried out using artificial insemination and multiple ovulation embryo transfer technology.
Which of the statements given above are correct?