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I believe it is pressure building inside that is pushing it outwards Plate tectonics is the movement of the earth's crust over the Mantle. Very similar to the way the thin chocolate coating of a choc ice slides over the melting ice cream. Sometimes the plates collide and one dives under the other. This is called plate subduction. Sometimes they move in opposite directions and new sea floor wells up from below to seal the gap. This is called sea floor spreading. If the plates moves sideways against each other the sudden movement causes earthquakes as the two forces suddenly equalise.

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14y ago
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13y ago

Stress.

There are internal stresses caused by the shifting of the tectonic plates and the stress of gravitational forces of the sun and moon.

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14y ago

plate tectonics?

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Q: What are the forces that push and pull on the earth's crust causing its deformation?
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Related questions

What is a change in the volume or shape of earths crust?

Deformation


How does stress change earths crust?

It causes it to deform - this deformation is called "strain".


Any change in the volume or shape of earths crust is called?

Tectonism, or diastrophism, is the term that refers to the deformation of Earth's crust. Plate tectonics is just the theory.


What forces squeezes or pull the rock in earths crust?

Stress forces squeeze or pull the rock in the Earth's crust.


What causes stress earths crust?

The movement in earths plates create powerful forces that pull or squeeze the rock in the crust.


What is a mega earthquake?

A mega earthquake is seismic activity below the earths crust that causes fluctuations in the earths tectonic plates. This forces the ground to shake and the earths crust to crack.


What is the answer to Earths surface can be changed by natural forces such as?

Umm, I think the crust.


Theory that explains changes in Earths crust by internal forces?

Plate tectonics


What fault makes rocks pulled apert?

the mantel of earths crust will break causing an eartqake


What is the name for a break is earth's crust where tectonic plates slide?

A break in the earths crust is called 1.) deformation 2.) boundry 3.) rebound 4.) fault I'll give you a hint. "It was not my _______ !!" "I did not break the lamp!!"


What is vertical Positioning of the Earths crust so that gravitational an buoyont forces balance called?

Isostasy


Which forces responsible for earths crust and lithosphere floating on the mantle?

convection currents in the upper mantle