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What is a danger for a miner while mining in subsurface mining, primarily due to coal dust within the mine?

A. Subsurface Explosions
B. Mine Collapse
C. Water Pollution
D. Skin Cancer

Answer :

Final answer:

For a miner engaged in subsurface mining, the primary danger resulting from coal dust presence is subsurface explosions, causing a major health hazard.

Explanation:

The primary danger for a miner engaged in subsurface mining, where coal dust is prevalent, is subsurface explosions (Option A). When coal dust particles in the air within the mine reach a certain concentration, they can become highly explosive. This coal dust, combined with a source of ignition such as a spark or hot surface can trigger an explosion. Mine collapses are a potential risk for any form of mining, but are not specifically related to the presence of coal dust. Water pollution and skin cancer (Options C and D) also pose potential risks for miners, but they are not specifically tied to the presence of coal dust within the mine.

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