Explain how the movements of electrons in electric conductors and electric insulators affect the properties of the materials

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

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.

answer///terminator or twilight zone;