To solve the food problem of the country,which among the following is necessary?

Write three advantages of crops growing in shorter duration of time compared to those growing in longer duration of time.

Two average students, Ram and Shyam, were discussing the following graphs in the class:
[Image: $1158-196$]
The question relating to the graphs was to identify which one of them was not possible. Ram and Shyam agreed that graphs $A, B$ and $C$ were not possible. But Shyam said that graph $D$ is possible, while Ram said that it is also not possible. Since their teacher was on leave, they could not ask her. Seeing this, Ratan, who was very intelligent, came to their rescue. He told Shyam that graph $D$ was also not possible.
$(a)$ Do you think that Ratan is right? If so, why is graph $D$ not possible?
$(b)$ What values are imbibed by Ratan?

Write two examples each of the fishes that are:
$(i)$ Top dwellers
$(ii)$ Middle dwellers
$(iii)$ Bottom dwellers,in composite fish culture.

Match the column $A$ with the column $B$:

Column $A$	Column $B$
$(a)$ Catla	$(i)$ Bottom feeders
$(b)$ Rohu	$(ii)$ Surface feeders
$(c)$ Mrigal	$(iii)$ Middle-zone feeders
$(d)$ Fish farming	$(iv)$ Culture fishery

The kind of flowers available determines the taste of honey.