On Number 8, the climate where will be the coolest is the top of the mountain ao you put a arrow pointing at the tip of the mountain and put coolest. The warmest would be on the ground i think
By the ❄ snow on the mountain there would be a breeze to the high top of the mountain would be the coolest and on the group of looks like a desert and deserts are not and work so the bottoms would be warm.