In the early 1800s, why was there so little settlement on the great plains?

The weather was not very good for crops to grow it was often Really hot and dried out the crops. Making it that there was little food for people back then to eat. Hope this helps =)

Britain and its empire stood alone against hitler and mussolini. in june 1941, hitler broke the non-aggression agreement with stalin and germany invaded the soviet union. in december, japan attacked the us and britain. the main lines of world war ii had formed.

Ithink the answer should be a.