world. Trees absorb carbon dioxide and give us oxygen without which no living being can live. Trees give us shade‚ medicine‚ food‚ fruits‚ furniture‚ fuel etc. Trees also keep the weather cool and cause rainfall. They also bind soil and thus prevent erosion. The land of Bangladesh is suitable for the plantation of different kinds of trees. Trees can be planted in the vast areas of sea beaches. Both sides of the roads and railways offer great scope for planting trees. The villagers can make the best
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surface‚ the eroding or weathering process begins. Physical and chemical reactions caused by contact with air‚ water‚ and organic entities cause the rocks to break down. Erosion occurs once rocks are broken down; wind‚ moving water‚ and glaciers carry pieces of the rocks away. Moving water is the most conventional vehicle of erosion; every year tons of sediment is carried by major rivers from the mountains to the oceans (Home Training Tools 2012 para.6). Under normal conditions‚ the force created
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creation of pastureland‚ cropland‚ and degradation of the soil due to fire and clearing by humans is the agricultural changes on Madagascar. Soil erosion caused by slash-and-burn farming also forms the other changes in Madagascar that brings forth challenges to lemurs. As a conclusion‚ high deforestation rate and increased human population and erosion form the main changes that challenge the existence of lemurs in Madagascar.
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2010 SCI/245 Deserts and Glaciers Deserts cover about one-third of the earth’s surface and have unique geologic features that cannot be found in more humid environments. The features found in deserts are mostly formed by wind and water erosion. Desserts are usually created because they are located in a dry region downwind of a mountain range caused by air losing its moisture as it passes over mountains‚ also known as a rain shadow. Rocks of different hardness and strength weather
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RESOURCE & DEVELOPMENT Classification of Resources Basis of Classification Origin Exhaustibility Ownerhip Class Biotic Abiotic Renewable Non-renewable Individual Community National International Example Flora and fauna Minerals‚ Soil‚ Forest‚ Water‚ Wind Fossil Fuel‚ Metals Private land‚ orchard Village Pond‚ Park River‚ Mines‚ International Ocean Territory starts after 200 km of national boundary Stage of Development Potential resources are yet to Potential wind energy source in be exploited
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increase is due to a slight imbalance between sedimentation by the river‚ and sinking of the delta due to consolidation of deeper sediments. The balance has been upset by the construction of levees and dams along the Mississippi River leading to rapid erosion of the Mississippi River delta in Louisiana.
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for this loss‚ they are still left in shock by the invasion of industrial culture on their once simple lives. Soil erosion is another consequence of deforestation. Although these forests appear to be flourishing‚ the soils beneath are very poor. The problem is that once forests have been cut down‚ crucial nutrients are washed out of the soil completely. This leads to soil erosion. When there are no trees to keep the soil in place‚ it dries and cracks under the sun’s heat. If the soil temperature
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Deforestation Define deforestation. Deforestation is when humans clear and remove trees from forests. It means cutting down trees and moving them away for things like farming‚ cities‚ or factories. Erosion of land and loss of nutrients. Erosion is when soil or rock gets slowly worn away by things like water‚ wind‚ or ice. It happens slowly over time and can change the shape of the land. Without trees‚ there is nothing to hold the soil cover and provide anchor as well as shelter. Without trees
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The per-acre farmland value decreased by 28% in high-erosion counties‚ and 17% in medium-erosion counties‚ relative to that of the low-erosion counties. Even over the long-term‚ the agricultural value of the land often failed to recover to pre-Dust Bowl levels. In highly eroded areas‚ less than 25% of the original agricultural losses were recovered
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Effects of Deforestation The subject of deforestation and the effects that it has on the environment have been heavily debated for a long time; particularly over the last few years. Governments and large lumber companies see large profits in the mass deforestation of forests and state that their actions are having few‚ if any‚ harmful effects on the environment. Most people disagree with this and think that the environmental effects are devastating and will become irreversibly disastrous in the
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