Which sentence describes Newton's first law? O A. Forces always come in pairs that have the same mag O B. It takes a larger net force to accelerate an object at a C. The action force applied by one object to another is o direction to the reaction force. D. Unbalanced forces cause an object to move.

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.

helium

oxygen

neon

sodium