If a deep temperate zone lake did not turn over during the spring and fall seasons as they normally do, which of the following conditions is most likely to result?
A) The lake would fail to freeze over in winter.
B) An algal bloom of algae would result every spring.
C) Lakes would suffer a nutrient depletion in surface layers.
D) The pH of the lake would become increasingly alkaline.

Question

Quizplus · Accepted Answer

Lakes typically undergo a process called turnover in the spring and fall, where water from the bottom (rich in nutrients) mixes with the water at the surface. If this process does not occur, nutrients at the bottom cannot reach the surface, leading to nutrient depletion in the surface layers, affecting the growth of aquatic plants and the overall ecosystem.

If a Deep Temperate Zone Lake Did Not Turn Over