Answer: c. Over the span of 10 to 1,000 years, groundwater behaves as a renewable resource.
Explanation:
Answer: D) slaves from the Americas were sold in Africa in exchange for finished goods
Explanation:
The earth is all mixed together, but all of its parts can be seen. This is true regarding all of the different people and cultures worldwide, as well as the physical features of the planet itself. We can see it's dirt, soil, sand, mountain, steppes, plateaus, animals, rivers, etc.
The correct answer is 9πr^2
I know because I just took the quiz.
