Question

Air exerts pressure in.
1. Upward direction
2.downward direction
3.all direction
4.two direction ​

Answer 1

Answer:

The weight of the atmosphere as it pushes down upon Earth's surface exerts a force per unit of area called air pressure. Air pressure is exerted in all directions because air molecules move in all directions. If you hold your hand out, palm up, the force of air pushing down on your hand is greater than your own weight.

Answer 2

Answer:

Air exerts pressure in.

3. All direction.