The atmosphere is a thin coating of gases that surrounds Earth. It stretches to over 560 kilometers from the surface of the Earth. It protects us by blocking out hazardous rays from the sun. It is retained by the Earth's gravity. The thickness of the atmosphere is equilibrium between the gravity of the Earth and energetic molecules that move towards space.
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Harry Potter
Harry Potter is a series of seven fantasy stories written by Scottish author Joanne Rowling. She writes under the pen name of J. K. Rowling. She got the idea for Harry Potter during her journey from Manchester to London in England. Greenhouse Effect
The Earth has a natural temperature control system. Earth's atmosphere is primarily composed of nitrogen that is 78 percent% and oxygen is 21%. These atmospheric gases restrict absorption of infrared energy. Only the greenhouse gases, which make up less than 1 percent of the atmosphere, offer Earth insulation. Seven Wonders
The New Seven Wonders of the world was announced in Lisbon on July 7, 2007, Saturday after a worldwide poll. The campaign to pick the seven wonders was began in September 1999 by Swiss adventurer Bernard Weber. His Switzerland based foundation called New7wonders, received almost 200 nominations from around the world. The list was narrowed down to 21 by early last year. Later it was reduced to 20 following complaints from Egypt over the Pyramids' inclusion as a candidate in competition with others. |
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