in the development of new medicines. * At least 500 million people rely on coral reefs for food‚ coastal protection‚ and livelihoods. It is estimated that coral reefs provide $375 billion per year around the world in goods and services. * Silt from eroded soil in runoff water can block sunlight. Without sunlight‚ photosynthesis does not occur and reefs gradually die. * Overfishing: affects the ecological balance of coral reef communities‚ warping the food chain and causing effects far
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SOIL POLLUTION & IT’S REMEDIES Environmental Science CONTENTS • What is Soil..? • What is soil pollution ? • How is it caused ? • Types of soil pollution . • What are the effects of soil pollution ? • How can we control soil pollution ? What is Soil..?? • Soil is the thin layer of organic and inorganic materials that covers the Earth ’s rocky surface. • Soil is composed of particles of broken rock that have been altered by chemical and mechanical processes that include weathering and erosion
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A Man I Am by Stevie Smith (1902-1971) In less than a page‚ this poem instantly recognizable as the work of its utterly unique author sketches the process of man s evolution from a primitive‚ violent‚ wolf-like state to true‚ spiritually-conscious humanity. The process is at the same time a movement from hate (line 1) to joy (in the penultimate line). The three verse paragraphs describe‚ in order‚ the wolflike state‚ the evolution itself‚ and finally the evolved state in which man began to feel human
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Geography and Early Civilizations Geography had a tremendous impact on early civilizations‚ the topography of the different regions played a key role in their development and formation. This statement by Fernand Braudel “ Geography is the stage in which humanity’s endless dramas are played out” (Getz et al.‚ Exchanges‚ 26) is a very moving and telling description. The terrain‚ whether it is natural or man made is not the end all‚ be all. It does however affect the stage a great deal. Mountainous
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Egypt and Mesopotamia Comparative Essay Egypt and Mesopotamia were two very complex and unique societies that proved to be both prosperous and successful. Having both been flourishing civilizations‚ they had many similarities. But each civilization had its own way of rising to success‚ which resulted in Mesopotamia and Egypt having major differences and similarities in not only culture‚ but government and economy. All in all‚ Mesopotamia and Egypt had similar economies because they both relied
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Rivers‚ Flood and Management The draining basin hydrological cycle: The drainage basin is the area of land that is drained by a river and its tributaries. Also; the catchment area from which a river system obtains its water. Drainage basin largely ‘closed’ system- watershed – boundary of a water basin- generally follows a ridge of high land. Movement of water in a drainage basin-Drainage Basin Hydrological Cycle- open system with inputs and outputs LOOK AT PAGE 9 IN NEW TEXTBOOK FOR DIAGRAM
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the mountains of Equatorial Africa and Lake Victoria before it empties into the Mediterranean Sea. Without the Nile River and its annual inundation Ancient Egypt would never have come into being. Its fertile valley was renewed every year with rich silt deposits laid down during the flooding. As the agriculture of Egypt revolved around the Nile‚ so did the social life of the ancient Egyptians. During inundation when there was less to do‚ people had more time for recreational activities‚ they played
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05 November 2012 Deforestation in third world countries It is said that Mother nature has given many responsibilities to the trees. Without the trees in the rainforest‚ it could have global implications not just on life but the quality of life to all living things. Trees in the rainforest improve the quality of the oxygen that all creatures breathe by trapping carbon and other particles produced by pollution. Trees also determine rainfall and replenish the atmosphere. As more water is able to be
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Its flooding every September and October left deposits of silt along the banks that created fertile miles of fertile soil along the Nile’s banks. These areas of fertile soil created perfect spots for farms‚ and since crops grew so well in the fertile soil the civilians of Ancient Egypt to have an ample amount
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As a fossil fuel its combustion contributes CO2 to the atmosphere‚ and so contributes to climate change. The particulates it emits on combustion contribute to inner-city pollution. Its extraction around the world is a dirty process‚ despite some half-hearted efforts to convince us otherwise. And the global appetite for oil-based fuels makes the environment‚ or indigenous people‚ only a secondary consideration in the oil business. To cap it all‚ most oil production is from politically unstable regions
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