Matching Pairs Enviromental impact. Relief and soilOnline version Relief and soil by Gehistart Artgeo 1 Some mines, quarries and transport infrastructure alter the relief. The landscape is marred and its economic value is lost. 2 Natural erosion is increased by human activity such as deforestation, farming, excessive grazing of pastureland and the use of heavy machinery 3 Desertification is land degradation, intensified by deforestation, erosion and overexplotation of water resources. The soil's fertility is lost. 4 Coastal relief is also altered by the construction of housing developments and marinas. 5 Soil polution is the result of chemical waste substances. As a consequence, the soil become toxic.
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