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Shown In Figure Surface Of The Earth
1,655 wordsThe oceans are said to be the source of life. The enormous, blue, calm oceans are the signatures of the planet earth. They cover nearly three-fourths of the surface of the earth. This is equal to 71 percent of the earths entire surface or about 361 million sq km (140 million sq mi). Its average depth is 5000 m (16, 000 ft), and its total volume is about 1, 347, 000, 000 cu km (322, 300, 000 cu mi). This includes the Atlantic, Pacific, and Indian oceans. These oceans are bordered by the continent...
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Ocean Currents Pacific Ocean
348 wordsSticking with the theme of ocean currents, (from portfolio # 2), I will reflect on Jan Kay? s Dec. 4, 2000 article titled? Warming taking food from Pacific. ? This article was retrieved from the Milwaukee Journal Sentinel. According to this article, warmer waters and changing ocean currents within the Pacific Ocean maybe causing a decline in plankton. Ocean plankton are the food source for many larger ocean creatures. According to a 50 year study, conducted by California Cooperative Fisheries In...
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Greenhouse Gases Nitrous Oxide
1,153 wordsIndeed, in my opinion, technology does owe ecology an apology. This is because ecological imbalances were as a result of the Industrial revolution, which could be said to be the beginning of the non-ending technological advancement cycle. During Industrial revolution, we began altering or climate and environment through changing agricultural and industrial practices. Before the industrial revolution, human activity released very few gases into the atmosphere, but now through population growth fo...
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Methane Nitrous Oxide Carbon Dioxide Methane
1,647 wordsWhy are the Heads of State Increasingly Worried About Global Warming? In the last few decades the worlds sea levels have risen, the weather has become more unpredictable and countries are now facing hotter summers with colder winters. This is due to global warming, which is becoming an increasingly real problem. But why is global warming a problem? If scientists theories are correct, then the results world over would be catastrophic. Global warming is the build up of greenhouse gases in the atmo...
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Biology Of The Galapagos Giant Tortoises
1,601 wordsThe giant tortoise is probably the best known of all Galapagos animals and even gave the archipelago its name; 'Galapagos' means tortoise in Spanish and may derive from the word for saddle, referring to the distinctive saddle-like shell of some of the tortoises. Galapagos giant tortoises can weigh up to 250 kg and live for more than 100 years. They are thought to belong to just one species, Geochelone elephant opus, with 14 different races or sub-species, three of which are believed to be extinc...
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Tectonic Plates Oceanic Crust
1,370 wordsThe core is divided into two parts, the solid inner core and the liquid outer core. The inner core is thought to be solid and primarily made up of iron and some nickel. The outer core is all around the inner core and is believed to be made up of liquid iron mixed with liquid nickel. The outer core is about 2890 to 5100 km. The inner core is 5100 to 6378 km. Earths mantle is mainly composed of substances high in iron and magnesium. The melting point of every substance depends on the pressure and ...
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Earth Surface Day And Night
1,063 wordsClimate has profound Climate Climate Climate has profound effects on us, and the world in which we live. In turn we as humans, and many other global factors contribute to our climate. Almost everything in our lives somehow impacts or is impacted by climate. We as humans can affect everything, from the food we eat to the air we breathe, including climate. This is through the alteration of the earth? s surface and the introduction of pollutants and chemicals such as carbon dioxide into the atmosph...
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Greenhouse Gases Nitrous Oxide
1,193 wordsQUESTION 1: Technology owes Ecology an Apology. Indeed, in my opinion, technology does owe ecology an apology. This is because ecological imbalances were as a result of the Industrial revolution, which could be said to be the beginning of the non-ending technological advancement cycle. During Industrial revolution, we began altering or climate and environment through changing agricultural and industrial practices. Before the industrial revolution, human activity released very few gases into the ...
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Gps Receiver Gps Satellites
3,519 wordsThe Department of Defense (DOD) initiated the Navigation System with Timing And Ranging (NAVSTAR) Global Positioning System (GPS) in 1973. The DOD developed it because at a cost of over twelve billion dollars the government had the monetary resources to achieve idealistic goals of national defense. The GPS Master Control Station controls NAVSTAR GPS, which is at Falcon Air Force Base outside Colorado Springs, Colorado. This satellite system is used to determine the speed and position of an objec...
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Earth Surface Seismic Waves
2,491 wordsNotes on the lithosphere- (rock sphere) Upper most part is crust of earth. Compiled of rocks of outer crust. Outermost shell. Upper part- rocks we see at and near the earths surface. Crust is 5 to 10 km thick under most oceans and 24 to 60 km thick under the continents. The lithosphere under the crust is solid, dense material. (more dense than surface materials). Lithosphere 100 - 200 km. Notes on the asthenosphere- zone beneath the lithosphere. Thick like tar. Weak because of high temperatures ...
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Southern United States El Nino
2,315 wordsEl Nino has been a reoccurring phenomenon for centuries. Man has only started to realize how much of the worlds weather is effected by it. The term El Nino refers to an irregular warming of the seas surface. During the last 40 years there have been 10 significant El Nino occurrences. Most affecting the coast of South America. Water temperatures increase along the coast as far as the Galapagos islands. Weak events will raise the water temperature 2 to 4 degrees Celsius and will have minor impact ...
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