Answer: Boyle's Law
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Boyle's Law is the pressure-volume law and it relates pressure and volume at constant temperature. Boyle's law states that pressure and volume vary inversely, meaning that as one goes up, the other one goes down.
An element's atomic number shows the number of protons in its nucleus.
Air moves when the molecules are free meaning they aren't close up to each other or trying to fill up space, they are moving freely.
Flourine.
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Watershed
A watershed is an entire river system of an area drained by a river and its tributaries