Give examples of phenomena that confirm the existence of atmospheric pressure.

1). Suction cups in animals that allow them to attach to objects by creating reduced pressure under the suction cups.

2). When walking on sticky soil (swamp, sand), a space with reduced air pressure is created under the foot, atmospheric pressure prevents the legs from stretching. Artiodactyls do not have this effect; they easily move on sticky soil.

3). The suction of the liquid through the tube is possible due to the pressure of the atmosphere on the free surface of the liquid.

4). The operation of pumps, communicating vessels – examples of the use of atmospheric pressure by humans.