Which of the following is a well-known herbarium located in Vadodara,Gujarat?

Which one of the following is not a correct statement?

Which method is used in the process of poisoning (preservation of biological specimens)?

Assertion $(S)$: Zoological parks operate under the control of $CZA$ (Central Zoo Authority).
Reason $(R)$: Zoological parks are places where wild animals are kept in protected environments under human care.
$(A)$ 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.

Which specific arrangements are made in botanical gardens?

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