Quest GiggleHow many years does water stay in Lake Superior?
191 years. A pollutant spilled into the lake today could still be swirling around there in the year 2217.
How close would your guess have been?
In the game we ask it like this: “How many years does an average drop of water spend inside Lake Superior?”
Type a number — scored exactly the way a round in the game is.
The answer
191years
