What two methods are used to determine the age of a rock or fossil?

Because of thermohaline circulation and other currents, A. The oceans of the world exist as distinctly different bodies of water B. the oceans of the world slowly mix, and are really one ocean. C.

Which of the following climate types has large temperature changes between the summer and winter months? a. tropical b. continental c. moderate d. polar The answer is B. continental

Palmas is closer to the equator than Neuquén. Which location has a warmer air temperature and why?

How much of the Amazon Rainforest is in Brazil? A.) 60% B.) 70% C.) 75% D.) 90%

Conflicts over territory and government are a common consequence of countries unifying or splitting apart. If each state in the US were to separate from the Union, what consequences might take place?

How high does the earth's atmosphere extend? A. 100 m B. 1,000 m C. 10 km D. 100km

How to grow plants in space?

Based on this map of oil imports, which nation imported the greatest number of oil barrels each day in the years before 2006? A. China B. Australia C. Canada D. the United States

How far will a P-wave travel in 9 min 20 sec?

The land in Mexico City is sinking. What is the primary cause of this problem? A. deforestation caused by cutting down trees B. too much water being taken from underground aquifers C. too many offices and towers being built in the city D.