The primary agent of contact metamorphism is

a. flowing water

b. heat

c. extreme pressure

d. weathering

Puerto rico only has one island. true or false.

Mount San Jacinto at almost 11,000 feet elevation is only a few miles from Palm Springs, California, located in the lower Mojave-Colorado Desert in southern California. Temperatures in Palm Springs have been recorded as high as 120 °F.

Why did many Americans fear Communism? O A. They believed that Communists wanted to take over America. O B. They thought that Communists would start another world war. O C. They were afraid that Communists would take over all the jobs. O D.

Feudalism is a system of local rule with conflicts over land. True False

Which of the following would decreasethe resistance to the flow of an electric current through a body?

what IS the threat of GMOs. One major food chain has stopped selling GMO-related foods and there have been some criticisms of this move. Are they really that dangerous? What does the data show?

About 70% of Earth's surface is part of the Question 6 options: biosphere. lithosphere. hydrosphere. atmosphere.

Which of the following nations is located in Sub-Sahara Africa? O Botswana O Algeria Eygypt O Libya

What is currently supported theory about the future of the universe

What are two radioactive isotopes that are useful for dating old rocks