Think about the different ecosystems we would find while studying the physical geography of the United States. Which ecosystem do you live in? In a short paragraph, describe the ecosystem that surrounds you. What kinds of plants and animals are common in your area?

Explain how a convection current in the earth is formed.

Which of the following best describes brazil's economy from 1650-1880? a. it gradually shifted to manufacturing as the industrial revolution progressed. b. it was based on mining. c. it was based on plantation agriculture, where slaves served as a labor force. d. it was based on small, family-owned farms.

What first caused people to consider that the continents were once one large landmass?