One atmosphere is the amount of pressure that can lift water approximately 10.3 meters.
Considering that a diver already experiences 1 ATM of pressure in air, the water depth in meters d, at which the diver would experience n ATM of pressure, is
d = (n - 1) * 10.3
Hence, to experience 3 atmospheres of pressure, you'd need to go ((3-1) * 10.3) = 20.6 meters (67.6 feet) underwater.
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No. There is more oxygen in deeper water.
Photosynthetic organisms need light in order to survive. In very deep water there is no light.
When a deep-water pressure wave, such as a tsunami, caused by earthquakes or volcanic eruptions, reaches the continental shelf, it compresses the pressure wave created. When the water gets more shallow, the wave height increases; This is simple physics: the speed of the wave actually slows as it enters shallower water. This slowing causes the wave length to shorten, but the kinetic energy contained in the pressure wave doesn't decrease. Thus the peaks get taller and the troughs get deeper.
DEEP-SEA THERMOMETERS- Thermometers used to measure temperatures in ocean depths must be especially constructed to withstand extreme pressure. For example, the pressure at depths of 5 miles is about 12,000 pounds per square inch. Ordinary thermometers could be crushed by such pressure.-punk_princess_080@yahoo.com
Deep currents