· Forest degradation
· Road construction
· River and stream erosion
By quarrying a lot of land is lost that could have been put to other uses. Also, in the barren areas precious trees and undergrowth are removed for quarrying the stones that lies underneath the soil. The productive top soil is lost due to quarrying. This top soil could have been better utilized for agricultural operations. Quarrying also disturbs the wildlife population of the area.
Other ill effects of quarrying include a fall in the local water table and air pollution due to the dust.
Many of man's activities are directly and indirectly responsible for landslides. Construction of roads is a process directly responsible for landslides, as it involves blasting large chunks of mountainside away to make the road. This disturbs the rock structure in the mountains and may cause it to become unstable. Forest degradation and overgrazing are some indirect causes of landslides.
Landslides cause widespread damage. They tend to damage roads, vehicles, property, houses, fields, orchards and forests. Huge sums have to be spent on debris removal and landslide prevention.
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