What type of water mass dissolves the most amounts of gases?
a. Tropical water masses
b. Temperate water masses
c. Equatorial water masses
d. Polar water masses
ANS: D
Gases dissolve the most in colder waters. The saturation level increases as temperatures decrease. This
partly explains the high nutrient productivity in the polar regions. Information can be found in the
section Gases Dissolve in Seawater.
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