Concept:
Different meteorological instruments are used to measure various atmospheric parameters such as temperature, pressure, humidity, and wind speed.
Step 1: Understanding atmospheric pressure.
Atmospheric pressure is the force exerted by the weight of air above a given point.
Step 2: Identifying the correct instrument.
A
Barometer is specifically designed to measure atmospheric pressure.
Step 3: Eliminating incorrect options.
- Thermometer measures temperature.
- Hygrometer measures humidity.
- Anemometer measures wind speed.
Conclusion:
Thus, the correct answer is
Barometer.