Physics
Absolute Zero is defined as

The temperature at which all molecular motion ceases
At which the volume becomes zero
At which liquid Helium boils
At which water boils at 298K

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Physics
Two identical solid pieces, one of gold and other of silver, when immersed completely in water exhibit equal weights. When weighed in air (given that density of gold is greater than that of silver)

Weighing will depend on their masses
The silver piece will weigh more
The gold piece will weigh more
Both silver and gold pieces weigh equal

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Physics
Which statement best describes an igneous intrusion?

Magma is exported to an open area and forms iron
Igneous intrusion for when ice crystals splash into lava
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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