Freshwater Lakes in Temperate Regions Will Turn Over in the ____

Question

Freshwater lakes in temperate regions will turn over in the ____.  
A) fall only
B) winter only
C) spring only
D) summer only
E) fall and spring

Accepted Answer

Freshwater lakes in temperate regions experience turnover in both the fall and spring due to changes in water temperature and density, which help to mix nutrients and oxygen throughout the lake.