Physics
Which phase change is an example of an exothermic process?

All listed here
Liquid to Solid
Gas to Liquid
Gas to Solid

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Physics
Which statement best describes an igneous intrusion?

Magma explodes to the surface and forms a smooth outer layer of rock
Igneous intrusion for when ice crystals splash into lava
Magma is injected into surrounding rock forming an igneous intrusive
Magma is exported to an open area and forms iron

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Physics
In a conductor

There is no conduction band
The forbidden energy gap is very narrow
The valence band and the conduction band overlap each other
The forbidden energy gap is very wide

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