In a gene bank,in what form is the genetic material stored?

Ex-situ conservation purpose is served by :-
$A.$ Zoological parks
$B.$ Wildlife safari parks
$C.$ Cryopreservation
$D.$ Biodiversity hotspots
$E.$ Sacred groves
Choose the correct option :-

Match the following regarding in-situ conservation in India:

Column-$I$	Column-$II$
$(P)$ Biosphere Reserves	$(I)$ $14$
$(Q)$ National Parks	$(II)$ $448$
$(R)$ Wildlife Sanctuaries	$(III)$ $90$

The Earth Summit was held in Rio de Janeiro in $1992$,which resulted in:

If the Bengal tiger becomes extinct,

Suggest a place where one can go to study coral reefs,mangrove vegetation,and estuaries.