Colorful World: Why Is Blue So Rare? (VIDEO)


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Nature has a lot of colors, but did you wonder why blue is so rare? Here is the answer from an educational YouTube Channel It’s Okay To Be Smart. Have a look! Our Mashbox team finds it very interesting:) If you are interested, why there is no purple color on the flags, check our other post  🙂

 

Preview: npr.org


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