Welcome to the 1520 Perfect Dictionary
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| D region | |
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| D REGION Definition: The lowest region of the ionosphere, extending from 35 to 40 miles. The degree of ionization of this region causes the refraction of the long wavelength radio waves. __________________________________ See perfect low (1). See perfect part (1). See perfect ionosphere. ____ See perfect particularity (1). See perfect characteristic (1). See perfect causality (3). ____ See perfect D notice. | |
1520 Products |
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1520 Products was established in 2005 with the purpose of entertaining and teaching us on key and important aspects of life (such as marriage, sex, etc) through the playing of games which will allow us to laugh but at the same time pass a message of what is the right or ideal way. |
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 1520 Sex Game |
 1520 Puzzles |
 1520 Marriage Game |