What cash crop do farmers of the Sahel raise?

One environmental problem affecting the supply of freshwater is that groundwater is being pumped from

A shark would not be a good index fossil because

Tropical climates exist between which of the following latitudes? A 30° north and 30° south B 40° north and 40° south C 50° north and 50° south D 60° north and 60° south

List 3 countries in America with the highest white/european population

What type of map includes information about bodies of water, mountains and valleys, and vegetation and climate?

Which European nation was the most influential in colonizing Brazil? A. Spain B. France Portugal D. England

What crops grow abundantly in the Central Valley of Chile? A) fruit, vegetables, and wine grapes B) sugar cane, rice, and oranges C) cacao, coffee, and bananas D) corn, wheat, and barley

Sections of active fault lines that haven't experienced a significant earthquake for a long time, even though adjacent sections have, are called a. stress accumulations. b. recurrence gaps. c. seismic risks. d. seismic gaps

What is the Trans-Siberian Railroad? a. the world's longest continuous railroad line b. the major link between Moscow and Europe c. the best way to travel between Russia and Afghanistan d. the shortest railroad in Siberia

What are the 4 different fields of study of Earth's systems?