Vitamin $B_{12}$ is most abundantly found in:

Which of the following pairs represents insects that are beneficial to humans?

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.

Match the following columns:

Column-$I$	Column-$II$
$P$. Vitamin $A$	$I$. Carrots,spinach,pumpkin
$Q$. Vitamin $C$	$II$. Bitter gourd,bathua,mustard,tomato
$R$. Iron and calcium	$III$. Spinach and bathua
$S$. Protein	$IV$. Broad bean,lablab,french bean,and garden pea

Apart from high yield,other main objectives of plant breeding are:

Which of the following is a viable option for increasing food production?