The mixing that occurs at fall and spring turnover replenishes _______ in the epilimnion and increases the level of _______ in the hypolimnion.
A) nutrients; sediments
B) nutrients; oxygen
C) oxygen; nutrients
D) oxygen; biological activity

Question

Quizplus · Accepted Answer

Nutrients are replenished in the epilimnion during fall and spring turnover because the mixing brings nutrient-rich water from the hypolimnion to the surface. Oxygen is increased in the hypolimnion during fall and spring turnover because the mixing brings oxygen-rich water from the epilimnion to the bottom of the lake.

The Mixing That Occurs at Fall and Spring Turnover Replenishes