Help on 5 questions in World Geography? (10 points!!)?

i don't know what to write for the other sentences, but i might be able to figure out what doesn't belong. 1)d 2)d 3)a 4)sorry, not really sure for this one 5)c as for the sentences, just write something with the general idea of what the rest of the sentences say. like for 1, something about climate and human settlement, for 2, something about population density, for 3 write about culture change. sorry i couldn't help more.