Question

This model shows how lake effect snow forms. Which statement best describes how the Great Lakes impact lake effect snow in the Great Lakes basin?
Responses
A They are a constant source of moisture that cause localized heavy snow during winter months.They are a constant source of moisture that cause localized heavy snow during winter months.
B They freeze in the winter, which keeps the region's temperature low and causes heavy snowfall.They freeze in the winter, which keeps the region's temperature low and causes heavy snowfall.
C They freeze in the winter, which causes flooding in the Great Lakes Basin when they thaw in spring.They freeze in the winter, which causes flooding in the Great Lakes Basin when they thaw in spring.
D They evaporate in the summer, but fill up again in spring as lake effect snow melts in the Great Lakes Basin.They evaporate in the summer, but fill up again in spring as lake effect snow melts in the Great Lakes Basin.

Answer 1

A

The Great Lakes provide relatively warm, unfrozen water that supplies moisture and heat to cold air passing overhead, producing localized heavy "lake-effect" snow downwind. Options B–D describe freezing, flooding, or summer evaporation effects that don't explain lake-effect snow.