Super Tuesday earned its nickname because it’s the date most states hold their presidential primaries …
Read More »Why Leaves Change Color: The Science Of Fall Foliage | Mach | NBC News
It’s the most iconic sign of autumn: leaves change from green to a brilliant array of reds, purples, oranges, and yellows that all too quickly fall to the ground. But what causes this process to happen? Mach explains. » Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Watch more NBC video: http://bit.ly/MoreNBCNews NBC News Digital is a collection of innovative and powerful …
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