The correct answer is option (b) Toxic water runoff poisoned and killed the trees.
How does underground mining affect the environment?
- Unlike open mining, underground mining extricating coal assets through the wells, ordinarily leads to arrive subsidence, water assets pulverization, soil disintegration, discuss contamination and biodiversity diminish.
- Those issues can interact with each other, and create through time and space, which speed up the natural disintegration of coal mining region.
- For example, territory changing, caused by mining subsidence, influences the surface hydrological processes, which at the same time break down the soil disintegration and water quality.
- Concurring to the concept of cumulative impacts, those issues, characterized in spatial and worldly overlay and interaction, create cumulative impacts on scene, water, soil, discuss and environment .
- Because of mining subsidence, the cumulative effect on terrain and landform mainly embody terrain undulation,
land use pattern and land cover change.
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