Question

Which of the following statement is correct about air pressure?

• A. Air exerts pressure in all directions.
• B. Air exerts pressure only in upward direction.
• C. Air exerts pressure only in downward direction.
• D. Air does not exert any pressure.

Answer 1

The correct option is A Air exerts pressure in all directions.

Air exerts pressure in all directions. When air molecules collide with a surface, they exert force. Since, the air particles move randomly in all directions, they exert pressure in all directions.