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When air pressure decreases, the mercury in a barometer _____. goes down goes up stays the same
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When air pressure decreases, the mercury in a barometer _____.

goes down
goes up
stays the same

User Jeremy Ross
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1 Answer

4 votes

Answer:

The mercury in the barometer will go down as there is less air pressing down on the bulb of the barometer to push mercury up.

Step-by-step explanation:

User Rahin
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