Geography • Physical GeographyEasy
Which of the following instruments is universally utilized to measure atmospheric pressure changes over time at meteorological observatories?
A. Anemometer
B. Barometer✓ Correct Answer
C. Hygrometer
D. Rain gauge
💡 Solution & Explanation
A barometer measures atmospheric pressure using either liquid mercury or an aneroid capsule containing a partial vacuum. Anemometers measure wind speed, hygrometers gauge relative humidity levels, and rain gauges collect and measure liquid precipitation depth. Atmospheric pressure readings are essential for forecasting weather disturbances and storm systems. Standard sea-level atmospheric pressure is defined as 1013.25 millibars.
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