2/ It takes 8 minutes 17 seconds for light to travel from the Sun's surface to the Earth. 3/ October 12th, 1999 was declared "The Day of Six Billion" based on United Nations projections. 4/ 10 percen

2/ It takes 8 minutes 17...
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2/ It takes 8 minutes 17 seconds for light to travel from the Sun's surface to the Earth. 3/ October 12th, 1999 was declared "The Day of Six Billion" based on United Nations projections. 4/ 10 percent of all human beings ever born... See more »
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