Which of these lakes is most associated with winter sports like ice fishing and snowmobiling in the U.S.?
  • Lake Superior
Which lake is known for the famous “Lake Erie Islands” which are a popular summer tourist destination?
  • Lake Erie
Which of the following is a significant environmental challenge facing the Mississippi River?
  • Nutrient runoff and hypoxia
How many gallons of water per second does the Mississippi River discharge into the Gulf of Mexico on average?
  • 593,000