Q. Consider the following statements:

1. The air pressure is the highest at sea level and decreases with height.
2. High pressure is associated with cloudy skies and wet weather.
3. Horizontally the distribution of air pressure is influenced by temperature of air at a given place.

Which of the above is / are correct?
Answer: Only 1 and 3
Notes: Air pressure is defined as the pressure exerted by the weight of air on the earth's surface. As we go up the layers of the atmosphere, the pressure falls rapidly. The air pressure is the highest at sea level and decreases with height. Horizontally the distribution of air pressure is influenced by temperature of air at a given place. In areas where temperature is high the air gets heated and rises. This creates a low-pressure area. Low pressure is associated with cloudy skies and wet weather.