WONDER #1808: Why Are Some Lakes Pink?

Question 1 of 3

Pink lakes tend to have an especially high concentration of what?

1. strawberries
2. sharks
3. salt
4. jellyfish

Question 2 of 3

Lake Retba is located in which country?

1. Senegal
2. Australia
3. Germany
4. Canada

Question 3 of 3

Dunaliella salina is a type of what believed to cause the pink color of many lakes?

1. fungus
2. bacteria
3. virus
4. algae

Check your answers online at https://www.wonderopolis.org/wonder/why-are-some-lakes-pink.