Question

what weather instrument is used for measuring air pressure?
○ wind vane
○ weather balloon
○ anemometer
○ barometer

Explanation:

• A Wind Vane measures wind direction, not air pressure.
• A Weather Balloon is used to collect weather data at different altitudes but isn't specifically for measuring air pressure directly.
• An Anemometer measures wind speed.
• A Barometer is the instrument specifically designed to measure air pressure.

Answer:

D. Barometer