Question

How do humans effect the water cycle?

Answer 1

Major human processes affecting the water cycle on land. R = storage of water in reservoirs; G = groundwater mining; I = irrigation; U = urbanization; C = combustion; D = deforestation; W = wetlands. This annual reduction in runoff corresponds to

a sea level lowering of 0.8 mm/yr.They affect the quality of rainwater and of

water resources both above and below ground, and damage natural systems. The causes of freshwater pollution are varied and include industrial wastes, sewage, runoff from farmland, cities, and factory effluents, and the build-up of sediment.