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What does the Earths crust mostly consist of?
Igneous rock.
What happens when the earths crust moves?
erosion
What pulls the earths crust?
The earths crust is moved rather than pulled by things called convection currents. This is when heated rock from the earths core rises up and reaches the crust where it cools. It then sinks down again and carries on in a circle which moves the crust
Large section of earths crust that moves as one unit?
Plate
What is compression in plate tectonics?
it is the movement of the earths crust. it moves inwards towards other plates so the earths crust moves upwards therefore forming mountains, volcanoes etc
What happens if the earths crust moves suddley along a fault?
The sudden movement could result in an earthquake.
What moves mountains and earthquakes together?
earthquakes make the earths crust collide and sometimes they smash together,such as if one peice of crust goes under the other...makng a point...
What is the size of the earths crust?
The Earths crust is approximately 650 km deep.
What is a volcano fault?
Faults are made up of fractures in the earths crust. One side of the fault moves opposite of the other side.
What causes the earths crust to rise and fall?
The sudden vibration in the plates inside the crust causes the earths crust to rise & fall.
What is under the earths surface and in the earths crust?
mantle
The surface of the earth moves violently in an what?
The surface of the earth moves violently in an earthquake. This occurs when there is a sudden release of energy in the earths crust. Anything from a volcano to a tectonic plate shift can cause an earthquake.
