Please help, will give brainliest. :D

Which of the following was a key accomplishment of the people of songhai? a. they had a strong military and became the largest empire in west africa. b. they established a center of islamic scholarship. c. they worked with iron and prospered from the gold-salt trade. d. they dominated in the trade of ivory, enslaved people, and animal skins.

How can christianity affect the cultural landscape of a place?

What happens after a star goes supernova? just wondering! [tex]supernova [/tex] answer asap i really wanna know!