Which describes Earth’s mantle? the ocean floors and all of the land features
the hot metal at the center of Earth
the thick, hot, rocky layer around Earth’s core
the liquefied metal of the outer core

Which best describes the idea behind the "invisible hand"? producers decide what to make for consumers, which guides the economy. individuals seeking their own self interest benefit the economy as a whole. government sets policy for producers and consumers, which guides the economy. consumers decide what they need and want to buy, which guides the economy.

Micah is studying child behavior in playgrounds throughout the world. he wants to see how the children react when teachers select the same child to be the first to use each piece of equipment. which approach is micah is using?

Why did activists use social media during the 2011 uprisings in egypt?