Physics
The combined gas law relates which of the following?

Volume & Pressure
Volume & Temperature
Volume, Temperature & Pressure
Temperature & Pressure

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Physics
Planets do not twinkle because

They are very far away from the earth resulting in decrease in intensity of light
They emit light of a constant intensity
They are nearer to earth and hence we receive a greater amount of light.
Their distance from the earth does not change with time

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