Question

Which of the following statements is/are correct regarding atmospheric pressure?

• A. The average atmospheric pressure at the sea level is around 1,013.2 millibars.
• B. Atmospheric pressure is uniform across the globe.
• C. Atmospheric pressure is measured with the help of an instrument called a barometer.
• D. Atmospheric pressure doesn't have any role in case of weather phenomenon.

Answer 1

Answer: (A), (C)

Atmospheric pressure is measured with the help of an instrument called a barometer.

Atmospheric pressure is an important factor in terms of weather phenomenon. It is not uniform across the globe. Thus, it helps in the formation of pressure gradients among various places. Atmospheric pressure is measured with the help of an instrument called a barometer. It is expressed as the millibars. At the sea surface, the average atmospheric pressure is around 1,013.2 millibars.