Did You know
by gowtham[ Edit ] 2010-02-07 11:23:50
Some scientists believe that the earth began billions of years ago as a huge ball of swirling dust and gases. If you dig in your backyard, donâАЩt worry about running into the earthâАЩs core. YouâАЩd have to dig a hole 4,000 miles (6,437 kilometers) deep!
