Which instrument is used to measure pressure?
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Saccarimeter
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Ammeter
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Lactometer
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Manometer
D
Correct answer
Explanation
A manometer is the instrument specifically designed to measure pressure, particularly gas pressure. It works by balancing the pressure against a column of liquid (often mercury or water). The other options are incorrect: saccarimeter measures sugar concentration, ammeter measures electric current, and lactometer measures milk purity.