The oldest eon in geological time is the ordovician.

a. false

b. true

The way in which people absorb outside cultures is called

What is loose material such as rock fragments mineral grains and plant and animal remains?

What was one unintended consequence that resulted from the U. S. Army Corps of Engineers draining part of the Everglades?

True or False? Earth is the only planet to have life.

What are particles thrown off the sun's corona that can affect Earth's magnetic field called? A) a sunspot B) nuclear fusion C) a coronal mass ejection

Which of the following factors was key to the formation of the first civilization in the Nile Valley? A. Nomads acquired more livestock to increase their wealth. B. The region experienced a surplus of food. C.

Most U. S. beaches are shrinking or encroaching on the land rather than growing or moving seaward, so the land of the U. S. is getting smaller, not bigger.

On what continent would you find the place with a latitude of 20° n and a longitude of 0°

Which is associated with mid-ocean ridges? A. rift valleys B. volcanic structures C. extreme temperatures D. mountainous topography

What natural feature of Southeast Asia did Europeans remove to take advantage of the region's resources? plantations forests roadways rice paddies