Minerals that contain a combination of silicon and oxygen, the two most common elements in Earth's crust, are called...?

How did geography influence the development of ancient greece?

What can happen to solar radiation when it enters earths atmosphere? check all that apply 1)it is absorbed by earth. 2)it is reflected by clouds. 3)it is reflected by glacial ice. 4)it is condensed into visible light. 5) is amplified by water molecules.

How many countries have portuguese as a national language?