Which instrument is used to measure atmospheric pressure?

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Multiple Choice

Which instrument is used to measure atmospheric pressure?

Explanation:
Atmospheric pressure is the weight of the air above us, and measuring it helps us understand and forecast weather. The instrument designed to measure this pressure is the barometer. A mercury barometer uses a column of mercury whose height changes with air pressure, while an aneroid barometer uses a sealed flexible chamber that expands or contracts as pressure changes. Hygrometers measure humidity, anemometers measure wind speed, and thermometers measure temperature, so they don’t assess air pressure. This makes the barometer the correct tool for measuring atmospheric pressure.

Atmospheric pressure is the weight of the air above us, and measuring it helps us understand and forecast weather. The instrument designed to measure this pressure is the barometer. A mercury barometer uses a column of mercury whose height changes with air pressure, while an aneroid barometer uses a sealed flexible chamber that expands or contracts as pressure changes. Hygrometers measure humidity, anemometers measure wind speed, and thermometers measure temperature, so they don’t assess air pressure. This makes the barometer the correct tool for measuring atmospheric pressure.

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