The chemical reactions between limestone and acid in the groundwater form. A) geysers. B) wetlands. C) volcanoes. D) sinkholes.

One way to use culture to describe a place is to A) list the main languages. B) describe its neighboring nations. C) explain what continent the place is on. D) tell how many people leave the place each year.

Which conclusion explains Africa's economic and government problems after independence

Compare and contrast landslides and mudflows.

Which features are parts of a mountain system? Check all that apply?

In what part of the sun is matter converted into energy?

What happened in Russia as a result of actions taken by Peter the great

At independence, the most prosperous country of former French Western Africa was A. Chad B. Senegal C. Côte d'Ivoire D. Benin

Why is mexico city the capital of mexico?

Why do deserts form around areas near the tropics but not the equator

Which of the following is not an object in our solar system? Star Black hole Asteroid Comet