The blank layer is near the top of the stratosphere

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.

When arriving at a navigation lock what is the order of priority

Match the philosopher with his ideas, achievement, or events in his life. aristotle