Where are maps and botanical books collected and stored?

Statement $S$: Rani Jijamata Udyan is located in Mumbai.
Reason $R$: Himalayan Zoological Park is located in Gangtok.
$(a)$ Both $S$ and $R$ are true,and $R$ is the correct explanation of $S$.
$(b)$ Both $S$ and $R$ are true,but $R$ is not the correct explanation of $S$.
$(c)$ $S$ is true and $R$ is false.
$(d)$ $S$ is false and $R$ is true.

It is based on information like chromosome number,structure,and behaviour.

Which of the following is useful in obtaining economic and ethnobotanical information?

Which of the following is an important function of botanical gardens?

Which information is not on a herbarium sheet?