Question

Many mining methods pollute water and air as _____ leak into the surrounding ecosystem.

• A. Minerals
• B. Toxic chemicals
• C. Fossil fuels
• D. Natural gases

Hint:

Mining pollution can cause:
• Water contamination
• Air pollution
• Soil degradation
• Loss of biodiversity

Answer 1

The Correct Option is B

Concept:
Mining activities involve extraction of minerals and metals from the earth. During mining and ore processing, many harmful substances are released into the environment. These harmful substances include:
• Mercury
• Cyanide
• Sulphur compounds
• Heavy metals Such dangerous substances are called: \[ \boxed{\text{Toxic chemicals}} \] Leakage of these chemicals pollutes:
• Water bodies
• Soil
• Air and damages ecosystems.

Step 1: Understand environmental pollution caused by mining.
Mining operations produce:
• Chemical wastes
• Dust particles
• Acid mine drainage These substances enter rivers, lakes, and atmosphere causing pollution.

Step 2: Identify the harmful leaking substances.
The question specifically mentions: \[ \text{``pollute water and air as something leaks''} \] The most suitable answer is: \[ \text{Toxic chemicals} \] because dangerous chemical compounds from mines contaminate ecosystems.

Step 3: Analyze all options carefully.
Option (A): Minerals
Minerals themselves are not mainly responsible for pollution leakage. Incorrect. Option (B): Toxic chemicals
Mining releases harmful chemicals into environment. Correct. Option (C): Fossil fuels
Not the general leakage product in mining pollution. Incorrect. Option (D): Natural gases
Not the best answer in this context. Incorrect.

Step 4: Choose the correct answer.
Therefore, many mining methods pollute water and air because: \[ \boxed{\text{Toxic chemicals}} \] leak into the surrounding ecosystem. Hence, \[ \boxed{(2)\ \text{Toxic chemicals}} \]