What continent is Chad in?

What heats up and cools down faster, water of land?

The following covers about 70% of earth's surfaces

One thing that is causing increased pressures on the Ogallala Aquifer is the tendency of farmers to plant crops that require even more water than usual. Which of the following are "thirsty" crops that farmers have started planting? Select one: a.

What type of natural disaster is a direct result of tectonic activity? a. hurricanes b. tropical storms c. volcanic eruptions d. tornadoes

How much has the distance of North America and Africa increased during the average lifetime of 82 years?

Why is the mexican plateau considered the heartland of mexico?

The Mississippi Delta is an example of which of the following? a. zone of deposition b. zone of transportation c. zone of sediment production d. angle of repose

Which of the following has been a continuing problem in Nigerian government? A. lack of technology B. illiteracy C. lack of communication D. corruption

According to this map, which states have a population of over 25 million residents? Check all that apply.

Why do the countries of the Arabian Peninsula rely heavily on foreign workers? a. The countries' immigration policies are the most lenient in the Middle East. b. The governments guarantee employment for all legal residents. c.