Almost everything in the universe orbits around a central object. the planets orbit the sun and moons orbit planets. the force most responsible for these orbits is a) gravity. b) inertia. c) strong force. d) electromagnetic.

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.

the answer is 12 as i may remember

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