43. difference between a landfill and dump is (5 points)

there is no difference-they both involve burying trash

wealthy countries do not have dumps

landfills take precautions to separate their waste from ground water and air

dumps are more expensive to operate and maintain

What is the social order of the ancient river valley civilization of mesopotamia?

In the wake of the civil war, compared to the south the north had sustained very little destruction. had to create a new labor system. had more economic challenges. had to repair damaged property.

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.