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Air pollution is the introduction of airborne chemicals, particulate matter or biological materials that cause harm or discomfort to organisms. [59] The population growth , industrialization and motorization of human societies have significantly increased the amount of airborne pollutants in the Earth's atmosphere, causing noticeable problems ...
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Earth's air has a density of approximately 10 19 molecules per cubic centimeter; by contrast, the densest nebulae can have densities of 10 4 molecules per cubic centimeter. Many nebulae are visible due to fluorescence caused by embedded hot stars, while others are so diffused that they can be detected only with long exposures and special filters.
Earth is the third planet from the Sun and the only astronomical object known to harbor life.This is enabled by Earth being an ocean world, the only one in the Solar System sustaining liquid surface water.
Rhine cutting through Flims rockslide debris. The Flims rockslide happened about 10,000 years ago (8000 BC) in eastern Switzerland. It is the largest known landslide in the Alps, [1] [2] and the biggest worldwide whose effects are still visible, moving some 12 km 3 (2.9 cu mi) of rock, about 300 times that of the historic Swiss Goldau landslide.
Five years after the bizarre scene that descended upon an Indianapolis Colts preseason game, the former No. 1 overall draft pick reflected on the end of his career during an appearance on "The Dan ...
The renowned open-air market is a wonderful sight to behold, with over 150 custom-designed kiosks and a 17,000-square-foot outdoor ice rink that’s free to use provided you have your own skates.
Ahead of the 'Based on a True Story' season 2 premiere on November 21, fans can watch Good Housekeeping's exclusive clip from the first episode before it airs.