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Which mining method contributes to excessive erosion, increased sediment, water pollution, and air pollution?

A) Placer mining
B) Subsurface mining
C) Open pit mining
D) Strip mining

Answer :

Final answer:

Strip mining (D) is the mining method that contributes to excessive erosion, increased sediment, water pollution, and air pollution.

Explanation:

The mining method that contributes to excessive erosion, increased sediment, water pollution, and air pollution is Strip mining (D).



Strip mining involves removing large strips of surface soil and rock to expose ore deposits. This method results in significant environmental impacts such as erosion, sedimentation of nearby water bodies, pollution from mine waste and chemicals, and degradation of air quality due to dust and emissions.



For example, when vegetation and topsoil are removed during strip mining, rainwater can easily erode the exposed surfaces, leading to erosion and sedimentation in nearby rivers and streams. Additionally, the exposure of ores and minerals during the mining process can lead to the release of pollutants into water bodies. The extraction and transportation of minerals and waste materials also contribute to air pollution through dust and emissions.

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