Atmospheric Pressure is measured by _____.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Barometer
A barometer measures atmospheric pressure, the weight of the column of air above a place. In the mercury barometer made by Torricelli, the air pressure holds up a column of mercury about 76 cm high at sea level; a falling reading often warns of stormy weather.
Why the other options are incorrect
Option (1) Pedometer — Incorrect. It counts the steps a person walks.
Option (2) Thermometer — Incorrect. It measures temperature.
Option (3) Odometer — Incorrect. It records the distance travelled by a vehicle.