What visible light wave is almost completely absorbed and converted to heat within the first few
meters of the ocean?
a. Red light waves
b. Yellow light waves
c. Green light waves
d. Blue light waves
ANS: A
Red light waves are converted to heat within the first few meters of the surface. In fact, 99% of these
waves are converted by 4 meters deep. Beyond this depth, red objects appear gray in color.
Information can be found in the section Light Does Not Travel Far through the Ocean.
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