Summarize the battle of Stalingrad

HELP THIS IS DUE TONIGHT

Western sahara is occupied by whom? a. mauritania b. algeria c. morocco d. tunisia

Describe the technology advancements that lead to explorers being able to sail great distances. [[ps: doesn't explain where. i am only speculating it's in europe.

Which best describes the characteristics of lynchings in the south from 1880 to 1910? a. the number of lynchings in the south increased b. the number of lynchings in the south decreased. c. the number of lynchings in the south stayed the same. od. the number of lynchings in the south equaled the number in the north