It would be drier because the mountains would stop rain from coming over into the valley. It's called the rain shadow effect or something. That's has much as I know.
Policles's actions advance the story's plot by pretending something that he is not. His intentions are to cause trouble between the two tribes and does this by tricking the two tribes that there is a conflict between them. The theme of the story revolves around factions and race.
Ham is already dead, people are not
Answer: The government.
I hope I helped, If you need anything else just let me know and I'll try :)Good luck!
