Physics
A gas thermometer is more sensitive than a liquid thermometer because a gas :

Is easy to obtain
Expands more than a liquid
Is lighter than liquid
Does not change state easily

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Physics
Air moves from the region where the air ________

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

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