Transcription: Once in a while, the air is air-depressant. If a person is caught in a cold, they will not be able to see their face, demonstrating that the air is air-depressant. The air pressure is the speed of the air being caused by gravity, which maintains the atmosphere above the air. In the middle of the night, we have a speed of over. The air also has speed and air-depressant. 10 meters, 23 p.m. of water, is the same pressure that the atmosphere has. For 10 meters, 30 p.m., the pressure is from 2 atmospheric soils, one from here and one from above. 20 meters, 66 p.m., the pressure is from 3 atmospheri ...