9 - • Malaria river blindness sleeping sickness yellow...

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Mostly tropical High pressure-dry weather, subsistence, not cloudy, low wind Low pressure-wind, clouds, precipitation Intertropical convergence zone (itcz) Rising air Heavy rainfall Subtropical highs Descending air Desert conditions Harmattan-warm, dry wind that originates in Saharan desert Dams-Hydroelectric Potential power for mines, smelting, public consumption, and export negative effects o relocation o destruction of good land o decreased river flow o siltation o increases in diseases (malaria) Affects people and livestock Vectors: tsetse fly, mosquitoes, snails, worms
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Unformatted text preview: • Malaria, river blindness, sleeping sickness, yellow fever, and intestinal parasites o Equator, warm temperature, standing water, livestock, rainforest Agriculture • Less than 30% arable-for a population of nearly 800 million • Shifting cultivation o slash and burn • bush fallow • intercropping-plant multiple crops together to prevent pests • flood plain farming-water traveling downstream, deposits silt, produces good fertilizer • pastoralism-raising small numbers of animals o transhumance...
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This note was uploaded on 04/15/2011 for the course SOCIOLOGY 118 taught by Professor Jennings during the Spring '11 term at Saint Louis.

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