Question : The instrument that measures and records the relative humidity of the air is
Option 1: Hydrometer
Option 2: Hygrometer
Option 3: Lactometer
Option 4: Barometer
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Correct Answer: Hygrometer
Solution : The correct answer is hygrometer.
Relative humidity is the ratio between the amount of water vapours an air mass is holding and the maximum amount of water vapours an air mass can hold. It signifies the chances of the rain in meteorological science. Hygrometer is the device used to measure the relative humidity of the air. It was invented by Geologist Horace Bénédict de Saussure in 1783.
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