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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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Oceanic Crust Mid Ocean
1,629 wordster> Describe the frequency, origin and distribution of earthquakes at mid-ocean ridges, ocean basins, subduction zones and continental shields. Earthquakes are happening almost everyday all over the world. Most of the time earthquakes are not strong enough to be felt by people, but the shaking caused by an earthquake is recorded by a seismogram. These are located all over the world at different points. Only occasionally will a larger magnitude earthquake strike and cause damage to the...
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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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Upper Saddle River Prentice Hall
888 wordsThe Earth is often referred to as the blue planet since it is seventy-one percent oceans and marginal seas with only twenty-nine percent comprising the continents and islands. There are three principal topographic features of the planets ocean floor: continental margin, ocean basin floor and mid-ocean ridge. The continental margin is the most extensive feature of the ocean floor divided into two kinds: a. ) the active continental margins which are primarily located around the Pacific Ocean with ...
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Evidence To Support Continental Drift
1,020 wordsWe live in an extraordinary era of exploration. We are now able to reach far out into space and deep down into the ocean. We have the advantage with technology such as computers and satellites. We can now simply understand the dynamic forces that shape our Earth. Our Earth is constantly destructing and recreating. It balances through a continuous rebirth cycle. The Earth? s dynamic shape can be summed up very simply-Transfer Of Energy. This " Big Idea" helps to explain many things such...
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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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Indian Ocean Persian Gulf
1,180 wordsIndian Ocean The Indian Ocean is the third largest body of water in the world, covering about 20 % of the Earths water surface. It is bounded on the north by southern Asia; on the west by the Arabian Peninsula and Africa; on the east by the Malay Peninsula, the Sunda Islands, and Australia; and on the south by Antarctica. It is separated from the Atlantic Ocean by the 20 deg east meridian south of Africa, and from the Pacific by the 147 deg east meridian. The northernmost extent of the Indian Oc...
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Earth Surface Polar Regions
1,264 wordsThe world? ? s ocean covers about 70 % of the Earth? ? s surface. It is use to produce us many things. It is more than a place to swimming, sailing and other recreation. The ocean serves as a source of energy, raw materials and most of all food like fish and seaweed. In this essay I will talk about What are our ocean resources and the importance of the oceans in the future. First, our largest resource in the ocean is food. There are two different kinds of food in the ocean, such as marine plants...
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Ozone Layer Million Tons
1,641 words? Ours, a water planet. The ocean covers 71 percent of the surface of the globe, and it constitutes over 90 percent of all habitable space on Earth. It? s total volume is around 300 million cubic miles and its weight is approximately 1. 3 million million million tons. No wonder that Arthur C. Clarke, scientist and writer, once remarked that it was? inappropriate to call this planet Earth, when clearly it is ocean. (Mulvaney 28). Ocean pollution is growing out of control, and the clean up of our ...
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Charleston S C Volcanic Eruptions
2,884 wordstrembling or Natural Disasters earthquake, trembling or shaking movement of the earths surface. Most earthquakes are minor tremors. Larger earthquakes usually begin with slight tremors but rapidly take the form of one or more violent shocks, and end in vibrations of gradually diminishing force called aftershocks. The subterranean point of origin of an earthquake is called its focus; the point on the surface directly above the focus is the epicenter. The magnitude and intensity of an earthquake i...
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