One atmosphere of pressure is defined as:
a) Each 34 feet of depth in freshwater
b)
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each 33 ft. of depth in saltwater
c) 1 ata
d) All answers are correct.
The absolute pressure expressed in terms of atmospheres absolute at 33 ft. in sea water is:
a) 1 ata
b) 3 ata
c) 2 ata
d) 4 ata
Underwater, the bending of light rays causes objects to appear to be:
a) closer
b) the same as the surface
c) At an angle consistent with the bend
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