Q. Which of the following is/are correct about atmospheric pressure?
- Pressure exerted by air on the earth.
- It creates winds.
- It does not influence weather.
Select the correct answer from the codes given below:
Answer:
Only 1 and 2
Notes: The pressure exerted by air at any point on the earth is called atmospheric pressure. Air pressure is important for the following reasons:
- It creates winds: when air moves, it becomes wind. The difference in atmospheric pressure gives rise to the wind system of the earth.
- It influences weather: changes in weather are related to changes in atmospheric pressure.
- Weather forecasting: changes in air pressure give important clues for forecasting weather.