Activities such as camping in wilderness areas a

ecotourism
b

endemic species
c

poaching
d

biodiversity hotspots

I would guess c but i’m not sure

If it isn’t a then it has to be d idk tho cause there’s no picture

Ifound this on google “these two compounds have a different ionic structure. caesium ion is larger in size when compared to the sodium ion. the charge gets more area to spread out evenly. so caesium chloride has a lower melting point than sodium chloride.” i hope this you for what your looking for