Which of the following is used as green manure?

Identify the correct statement.

$Saccharum barberi$ was grown in $A$ India,had $B$ sugar content and yield. $Saccharum officinarum$ did grow in $C$ India,had thicker stem and $D$ sugar content. Here $A$ to $D$ refers to:

Which is the most widely cultivated fiber-yielding crop in India?

By the turn of the twentieth century,the fertilizer consumption in India was expected to reach:

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.