than the core and is very thick. The Earth’s mantle is made up of different minerals and has high ranges in temperatures. The third layer is the crust‚ a portion of mass that is very thin when compared to the other two layers. The crust is made up of basalt and granite‚ considered to be the lowest density rocks within all of the planet’s layers. Scientists have the capabilities to determine the internal structure of our planet by using readings of seismic waves created by earthquakes. There are two
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Red soils develop in a warm‚ temperate‚ wet climate under deciduous forests and have thin organic and mineral layers overlying a yellowish-brown leached layer resting on red layer made of iron oxide(ferric oxide). Red soils generally form from iron-rich sediments. They are usually poor growing soils‚ low in nutrients and humus and difficult to cultivate. These soils are developed on old crystalline rocks under moderate to heavy rainfall conditions. They are deficient in phosphoric acid‚ organic matter
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been responsible for it. a. Eiseley says they would be able to “discern a subtle change in the light emanating from our planet”. What Eiseley is talking about is the evolution of earth from a place with red deserts like Mars and blackness of naked basalt to that of a green planet enveloped in plants. 2. What was the soundless‚ violent explosion that Eiseley refers to? Why could this be referred to as an explosion? a. The sudden appearance and domination of angiosperms/flowering plants. This can
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Juliet Ume-Ezeoke Nave World History AP 8 October 2014 Comparing and Contrasting Second Wave Empires and River Valley Societies While some differences between second wave empires and river valley societies are noticeable‚ the similarities are far more pronounced. In comparison to the initial civilizations discussed in chapter two‚ the second wave empires were much larger and significantly more powerful. However this is nothing special because through much of history‚ empires and political
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What is art? In an attempt to embody all of its characteristics‚ the Wikipedia Encyclopedia defines art as the product or process of deliberately arranging symbolic elements in a way that influences and affects the senses‚ emotions‚ and/or intellect.[1] The Metternich Stela‚ an ancient work of art located in the Metropolitan Museum of Art‚ corresponds aptly to that definition. The Stela was carefully carved out of a stone called graywacke with mythological depictions to protect Egyptians against
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BLACK CIVILIZATIONS OF ANCIENT AMERICA (MUU-LAN)‚ MEXICO (XI) Gigantic stone head of Negritic African The earliest people in the Americas were people of the Negritic African race‚ who entered the Americas perhaps as early as 100‚000 years ago‚ by way of the bering straight and about thirty thousand years ago in a worldwide maritime undertaking that included journeys from the then wet and lake filled Sahara towards the Indian Ocean and the Pacific‚ and from West Africa across the Atlantic
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ABSTRACT Culture is the background of every human communication. Cultural embedding as a feature of texts in general is also valid in technical and scientific texts. As translation by humans is based on understanding‚ the translator needs knowledge in order to detect cultural aspects. This is possible by putting down implicit cultural references to certain structures on the text level. Cultural elements appear in the text on all levels – from the concept and form of words‚ to the sentence and text
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four pits‚ and how each has been reworked and influences by time‚ climate‚ post-glacial events‚ and humans since the deglaciation of the area. Prior to the glaciation of this part of Connecticut‚ the landforms of tilted sedimentary bedrock and basalt dikes and flows were created by the collision and subsequent separation of continents‚ and by the erosional‚ depositional‚ and volcanic events of the Triassic period. These events continue to define the
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GEOHYDROLOGY HYDROLOGIC CYCLE The movement of water on the earth’s surface and through the atmosphere is known as the hydrologic cycle. Water is taken up by the atmosphere from the earth’s surface in vapour form through evaporation. It may then be moved from place to place by the wind until it is condensed back to its liquid phase to form clouds. Water then returns to the surface of the earth in the form of either liquid (rain) or solid (snow‚ sleet‚ etc.) precipitation. Water transport can also
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Fanno Creek is a 15-mile (24 km) tributary of the Tualatin River in the U.S. state of Oregon.[3] Part of the drainage basin of the Columbia River‚ its watershed covers about 32 square miles (83 km2) in Multnomah‚ Washington‚ and Clackamas counties‚ including about 7 square miles (18 km2) within the Portland city limits. From its headwaters in the Tualatin Mountains (West Hills) in southwest Portland‚ the creek flows generally west and south through the cities of Portland‚ Beaverton‚ Tigard and Durham
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