What are important thing that are made by minerals?

What is a solor energy and how dose it affects earth

Which two countries contain over one-third of all people on the planet?

3. A (n) _uses wire mesh as a reflector to collect radiation from space. a. Reflecting telescope b. Refracting telescope c. Radio telescope Prism

Helium was discovered on earth years after it had been discovered on the sun. a. True b. False

From where do cold surface currents bring their cold water?

Dams are often built to generate power. One negative impact of damming a river is reduced flow downstream water storage to battle a drought increased recreation opportunities flood control

What three cities form the global centers of economic activity?

Describe and explain the physical and/or chemical methods used to refine the coal

Explain the characteristics of authoritarianism, and identify two Central Asian countries that have this type of government

Why are the rivers so vital to europe's economy?