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descpion words
| Question | Answer |
|---|---|
| volcano | a fissure in the earth's crust through which molten lava and gases erupt a mountain formed by volcanic material |
| crust | the outer layer of the Earth |
| tectonic plates | Rigid parts of the Earth's crust and part of the Earth's upper mantle that move and adjoin each other along zones of seismic activity. |
| earthquake | shaking and vibration at the surface of the earth resulting from underground movement along a fault plane of from volcanic activity |
| San Andreas Fault | The San Andreas Fault is a continental transform fault that runs a length of roughly 800 miles (1,300 km) through California in the United States. ... |
| convection currents | Heat deep inside the Earth that drives the movement of the Earth’s plates nearer the surface. |
| inner core | hottest layer of Earth. It is solid iron and nickel because of the tremendous amount of pressure it is under |
| outer core | the outer core of the Earth is a liquid layer about 2260 km thick composed of iron and nickel which lies above the Earth's solid inner core |