What is the largest mountain system in North America?

Which organization was established in 1968 to promote trade in the Caribbean?

Wich colonial government reserved many prominent leadership positions for Catholic Church leaders

The water in an estuary is a. salt water only c. in the aphotic zone b. poor in nutrients d. a mixture of fresh water and salt water

In Germany, many of the trees in the forests are dying. This is because the waxy outer coating on their tree leaves is being damaged by A) drought. B) acid rain. C) biomediation. D) locust swarms.

What country is also a continent? What three large countries make up North America?

Dams are often built to generate power. One negative impact of damming a river is reduced flow downstream water storage to battle a drought increased recreation opportunities flood control

What three cities form the global centers of economic activity?

Describe and explain the physical and/or chemical methods used to refine the coal

Explain the characteristics of authoritarianism, and identify two Central Asian countries that have this type of government

Why are the rivers so vital to europe's economy?