Answer:Barometer :
Barometer is a scientific device. It is used to measure air pressure in environment. Air pressure changes with distance upper and bottom sea level.
Barometer is also used for measure altitude.
Barometric pressure has main effects on water and atmosphere conditions.
Hence, Barometer is used to measure air pressure.
Explanation:
Answer:
She did no work while she posed because she did not move the torch or the book.
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the color of the litmus paper will turn into blue color because sodium carbonate is basic in nature