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(D) herbarium is a storehouse of collected plant specimens that are dried,pressed,and preserved on sheets.To ensure the long-term preservation of thes

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Both $(A)$ and $(B)$

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(D) herbarium is a storehouse of collected plant specimens that are dried,pressed,and preserved on sheets.To ensure the long-term preservation of these specimens,they must be protected from biological agents like fungi and insects,as well as environmental factors like moisture.$1$. Naphthalene balls are commonly used as a repellent to keep insects away from the dried specimens.$2$. Fumigation is a process of using chemical fumes to disinfect the herbarium cabinets and specimens,effectively killing fungi and insects.Therefore,both $(A)$ and $(B)$ are standard practices in herbarium maintenance.

$(1)$ Conservation of genetic diversity	$(P)$ Production of new species
$(2)$ Landscape gardening	$(Q)$ Germplasm bank
$(3)$ Tissue culture technique	$(R)$ Field education
$(4)$ Conservation of rare genes	$(S)$ Integrated research project
$(5)$ Phytochemistry	$(T)$ Conservation
$(6)$ Display of plants according to family,genus	$(U)$ Public service

What measures are taken in a herbarium to protect specimens from fungi,insects,and moisture over time?

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