Question

what makes mountaintop removal a controversial mining method? it only produces small amounts of minerals because of small surface areas. it blows off the top of mountains and lets debris fall into valleys. it causes less environmental damage than other methods of mining. it uses dangerous chemicals that can contaminate the environment.

Explanation:

Mountain - top removal is controversial mainly because it involves blowing off the mountain tops. This process results in large amounts of debris. The debris then falls into valleys. This causes significant environmental damage such as habitat destruction, soil erosion, and water pollution. Option A is incorrect as it actually can access large mineral deposits. Option C is wrong because it causes more environmental damage. Option D is not the main reason for its controversy compared to the physical destruction of the landscape described in option B.

Answer:

B. It blows off the top of mountains and lets debris fall into valleys.