Q. Which among the following statements is/are correct about atmospheric pressure?
- The air at the surface is denser and hence has lower pressure
- The air pressure is proportional to density as well as temperature
Select the correct code from the options given below:
Answer:
Only 2
Notes: Due to the influence of gravity, the air at the surface is denser and hence has higher pressure. A change in either temperature or density will cause a corresponding change in the air pressure. The air pressure is proportional to density as well as temperature.