What is true of compensation depth?
a. It is the depth at which carbohydrate and oxygen production equals the amount of
consumption
b. It marks the bottom of the euphotic zone
c. It receives only 1% of surface light penetration
d. All of these choices
ANS: D
The compensation depth is when the photosynthetic production is equivalent to the consumption
during respiration. There is a net productivity of zero. Information can be found in the section
Production Equals Consumption at the Compensation Depth.
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