Question 167 Deck General

The correct answer is C) Seasonal fluctuations. The water levels on the Great Lakes experience the most regular and predictable fluctuations on a seasonal basis. This is due to the annual cycle of precipitation, snowmelt, and evaporation that occurs in the Great Lakes basin. Seasonal changes in precipitation and temperatures lead to higher water levels in the spring and summer, and lower water levels in the fall and winter. In contrast, long-term, short-term, and outflow fluctuations are less regular and predictable. The seasonal cycle is the most consistent and reliable pattern of water level changes on the Great Lakes.