| 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 |
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