Why do the planets have different colours? The answer is that the planets are different colors because they are made of different materials. Planets have the colours that they have because of what they are made of and how their surfaces or atmospheres reflect and absorb sunlight. Mercury has a dark grey‚ rocky surface which is covered with a thick layer of dust. The surface is thought to be made up of igneous silicate rocks and dust. Venus is entirely covered with a thick carbon dioxide atmosphere
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seafloor using available echo profiles‚ the resulting mapped showed a large canyon that traversed the length of the ridge. ⦁ Hess explains that as new crust is being formed at the ridges old ocean crust is being destroyed as it is pulled back into the Earth in deep ocean trenches which lie along the edges of continents called subduction zones ⦁ Ewig found that beyond the continental shelf the ocean floor contained only recent sediment and unlike what was expected for the 3 billion years of accumulation
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How Can You Help the Earth to Survive? Try to imagine living in a world where weather conditions‚ like hail the size of oranges or hurricanes with unseen wind force‚ are reality. In the movie “The Day After Tomorrow”‚ scenes with disastrous weather conditions like the one mentioned above‚ are shown as a result of greenhouse effect and global warming‚ if they continue to increase. Fortunately‚ what the movie shows us is not very realistic‚ and the outrageous weather conditions are most likely never
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Earth Day is an annual event‚ celebrated on April 22‚ on which day events worldwide are held to demonstrate support for environmental protection. It was first celebrated in 1970‚ and is now coordinated globally by the Earth Day Network and celebrated in more than 192 countries each year. In 1969 at a UNESCO Conference in San Francisco‚ peace activist John McConnell proposed a day to honor the Earth and the concept of peace‚ to first be celebrated on March 21‚ 1970‚ the first day of spring in the
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PROTECT OUR MOTHER NATURE Repeatedly in history‚ conceptions of nature have served as ideological justifications for political theory. The most obvious example is the Hobbesian state of nature against which even the most oppressive government appears perfectly legitimate. Whereas in most cases of political theory‚ nature looks like an incompetent savage or unreliable tramp‚ some anarchist lines of argument instead offer versions of nature as infinite‚ loving‚ or otherwise better than the artifices
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http://www.nap.edu/catalog/12161.html We ship printed books within 1 business day; personal PDFs are available immediately. Origin and Evolution of Earth: Research Questions for a Changing Planet Committee on Grand Research Questions in the Solid-Earth Sciences‚ National Research Council ISBN: 0-309-11718-6‚ 200 pages‚ 8 1/2 x 11‚ (2008) This PDF is available from the National Academies Press at: http://www.nap.edu/catalog/12161.html Visit the National Academies Press online‚ the authoritative
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The structure of the earth The earth has three major parts-the land part or lithosphere‚ the water part or hydrosphere and the air part or atmostpere. The lithosphere is the surface on which you live . It is also the earth solid sphere consisting mainly of massive rocks. The massive rocks form large land masses called continent and small island groups . Different land form such as mountains‚hills‚valleys‚plateaus and plains make up the lithosphere. The hydrosphere include all water forms
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There are nine planets in the Solar system if you include Pluto and most of them contain many different things then each other. They are all unique in various ways. Although it does not apply to Pluto‚ the planets are split up into two sides; Jovian and Terrestrial. Pluto isn’t Jovian or Terrestrial. It’s density is too small for it to be considered a Terrestrial planet‚ but it also is made out of rock and ice (Kaitlin). To be a Jovian planet it would have to be made of of gas‚ so it was classified
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The word planet is derived from the ancient Greek word planetes‚ or “wanderers.” Though the visible planets of that time did appear to be wandering in the sky‚ the science of Astronomy has broadened this term as well as our understanding of what‚ in fact a planet is. By modern definition‚ “planet” is described as a celestial body other than a star‚ which orbits a star. Our Solar System orbits the center of our home galaxy‚ the Milky Way‚ and has a rich and varied structure. It consists of the
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the history of mother earth. Only in the last few centuries‚ the impact of man on climate change has accelerated. Due to rapid industrialization and very high energy consumption‚ man has been drilling petrol from deep inside the earth‚ throwing it out into atmosphere through uncontrolled emission almost relentlessly every second and all over the world. Thus Mother earth has been subjected to artificial volcanic eruptions every second‚ polluting the atmosphere all around earth. This definitely has
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