Regional floras are prepared with the help of reference works of which scientists?

Which of the following statements does $NOT$ represent the primary objective of a zoological park?

Which of the following items should a student carry during a field study?

$S$ Statement: Periodic poisoning is done to protect against fungi,insects,and moisture.
$R$ Reason: To preserve dried plant specimens,they are sprayed with specific chemicals; this process is called poisoning.
$(a)$ 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.

What is a botanical garden?

What purpose can be served by a museum?