The time it takes to transport goods has over time, causing trade to . A. increased . . . decrease B. decreased . . . decrease C. decreased . . . increase D. increased . . . increase H

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.

Select the phrase that best describes "race."a. religiously distinct b. different species c. socially constructed d. factually accurate

What is the phrase describes the paleo-indians of prehistoric arkansas