QUIZ: Do You Know More About Puerto Rico Than The Average American?

Puerto Rico is known for its blue sand beaches, which are blue because:

Retry Correct Incorrect Some of the beaches in Puerto Rico appear to have blue sand because of the iron levels in the water.

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Puerto Rico is known for its blue sand beaches, which are blue because:

• There are high levels of iron in the water
• There is an ink factory nearby
• Small blue krill get washed up on the shore
• Of the way the light reflects on the sand, in the same way we see the ocean as blue