Which of the following comparisons between surface and subsurface mining is true?

A. Subsurface mining is safer for miners than surface mining.
B. Surface mining has a lower environmental impact compared to subsurface mining.
C. Subsurface mining is more cost-effective due to reduced equipment requirements.
D. Surface mining is generally used for extracting deep-seated minerals.

Question

11-11-2023
Geography

High School

We appreciate your visit to Which of the following comparisons between surface and subsurface mining is true A Subsurface mining is safer for miners than surface mining B Surface mining. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

Which of the following comparisons between surface and subsurface mining is true?

A. Subsurface mining is safer for miners than surface mining.
B. Surface mining has a lower environmental impact compared to subsurface mining.
C. Subsurface mining is more cost-effective due to reduced equipment requirements.
D. Surface mining is generally used for extracting deep-seated minerals.

Answer :

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VinyaTh78 VinyaTh78 · Answer 1 · 2024-09-30T16:45:50-04:00

Final answer:

Surface mining has a lower environmental impact compared to subsurface mining. Option B is correct.

Explanation:

The correct comparison between surface and subsurface mining is B) Surface mining has a lower environmental impact compared to subsurface mining.

Surface mining involves removing the topsoil and rock layers to access the mineral deposits, while subsurface mining involves digging tunnels and shafts deep underground to extract minerals. The environmental harm is mostly confined to a local region, with rehabilitation possible post mining.

On the contrary, subsurface mining involves sinking shafts to reach the deposits deep below the earth's surface, which can lead to widespread environmental degradation, including groundwater contamination and land subsidence.

Surface mining can have a lower environmental impact because it allows for land reclamation and restoration after mining activities are complete. On the other hand, subsurface mining can result in ongoing environmental issues, such as groundwater contamination and subsidence.Option B is correct.

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