Physics
Air moves from the region where the air ________

Pressure is high to the region where the pressure is low
Pressure is low to the region where the pressure is high
Humidity is high to the region where the humidity is low
Humidity is low to the region where the humidity is high

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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)

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

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