Which are human systems?

the Amazon Rain Forest

the Appalachian Trail

the George Washington Bridge

the Himalayas

the Hoover Dam

the North American Free Trade Agreement

the San Andreas Fault

the Suez Canal

In general what is a developing nation

Why is grain farming commercial Agriculture?

True or false In the United States, women earn 77 cents for every dollar a man earns.

How does the burning of fossil fuels increase the greenhouse effect? by decreasing the absorption capacity of greenhouse gases by decreasing incoming solar radiation by releasing carbon dioxide into the atmosphere

What is an informed decision How is an informed decision made

Two towns have about the same latitude and elevation. One town is on the coast and the other is far inland. How would the summer weather of the inland town most likely be different from the weather in the coastal town?

When magma cuts across another rock and hardens, resulting formation is called what?

A car accelerates at a rate of 10m/s" for a time of 4s. It reaches a speed of 52m/s Calculate its initial speed.

The United States has two major oceanographic research institutions. They are located in: Massachusetts and California California and New York Massachusetts and Florida Florida and Maine

Which countries receive the most and least rainfall in sub Saharan Africa?