The effect takes place when mountains block precipitation from falling in an area.

How many square miles is Earth's surface?

How does the atmosphere behave as a system?

List three reasons why the English colonies were settled.

Which of the following best describes a comet's motion? a. They stay in relatively the same place until they fade from sight. b. They are in constant motion until they fade from sight. c. They are in constant motion until they reach Earth. d.

11. What causes the steep slopes of stratovolcanoes (composite cones) ? a. large volumes of pahoehoe lava b. large volumes of a'a' lava c. large volumes of cold tephra (pyroclastic particles) d. large volumes of hot tephra that weld to one another

The principle of uniformitarianism states that geologic processes that happened in the past cannot predict or explain why current geologic processes happen. True False

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