Question

With the help of an activity show that air exerts
pressure.
removed from water?​

Answer 1

Answer:

As water is poured over the can, some steam in the can condenses into water, reducing the amount of air inside. The pressure of air inside the can decreases than the pressure exerted by the air from outside the can. As a result the can gets compressed. This activity again confirms that air exerts pressure.

Answer 2

Answer:

In the activity performed in my attached image When we close a Glass with water with a lid and turn it upside down, But the cardboard didn't fall.

Explanation: