Physics
Surface tension in a liquid is due to :

Gravitational force between molecules
Adhesive force betweenmolecules
Cohesive force between molecules
Electrical force between molecules.

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Physics
Air moves from the region where the air ________

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

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