Physics
Which alternative energy source is exhaustible?

Solar energy
Geothermal energy
Wind energy
Tidal energy

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Physics
Which statement best describes an igneous intrusion?

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

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Physics
Dynamo is a device for converting

Magnetic energy into electrical energy
Heat energy into electrical energy
Mechanical energy into electrical energy
Chemical energy into electrical energy

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