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.