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GGH2604Study unit 4: The human impact on the waters
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Agriculture and urbanisation and its effects on river flow•The process of urbanisation affects the flow of water more markedly thanthat of cultivation or deforestation.•The health of a population depends heavily on the supply and disposal ofwater.•The problem with water quality deterioration arises more frequently incities, but it is more viable for these densely populated areas to providegood water efficiency and water treatment.•However, there is always a price–effects that are felt by other upstreamand downstream.•An increase in runoff can occur due to impermeable surfaces (bitumen,tarmac, tiles and concrete)•Removaloftreesorvegetation–increasesinstormflowandsedimentation•Drilling of wells may cause the lowering of the water table