Physics
Which statement best describes an igneous intrusion?

Magma is exported to an open area and forms iron
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

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Physics
Which of the following is not a property of heavy water ?

Freezing point of heavy water is higher than that of ordinary water
Boiling point of heavy water is lower than that or ordinary water
It produces corrosion
Density of heavy water is higher than that of ordinary water

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