The study of taxonomy of living organisms can be facilitated by visiting which of the following?

$A:$ Botanical gardens are an $ex-situ$ conservation strategy for plants.
$R:$ The National Botanical Garden is situated at Howrah.

Assertion $A$: In a herbarium,plant specimens are preserved and protected.
Reason $R$: Processes like poisoning and fumigation are performed on plant specimens.
Which option is correct for Assertion $A$ and Reason $R$?

What is the full form of $IABG$?

Give a scientific reason: Biological diversity is preserved by museums.

Match Column $X$ with Column $Y$ and select the correct option:

Column $X$	Column $Y$
$(1)$ Fumigation	$(P)$ For rare species of plants and animals
$(2)$ Tissue culture	$(Q)$ To preserve specimens in jars or bottles
$(3)$ Herbarium/Museum	$(R)$ Protection against fungi,insects,and moisture
$(4)$ Gene bank	$(S)$ For the development of new varieties