Question

which is a cause of soil pollution? waste disposal in the ground detergents exhaust from cars smog absorbing into the ground

Explanation:

To determine the cause of soil pollution, we analyze each option:

• "waste disposal in the ground": When waste is disposed of in the ground, harmful substances from the waste can leach into the soil, contaminating it. This directly affects the soil.
• "detergents": Detergents are more associated with water pollution (e.g., from wastewater) rather than a direct cause of soil pollution.
• "exhaust from cars": Car exhaust is a source of air pollution (e.g., releasing pollutants into the atmosphere) and does not directly pollute the soil.
• "smog absorbing into the ground": Smog is an air pollutant mixture; while some pollutants might eventually reach the soil, this is less direct compared to waste disposal in the ground.

So, waste disposal in the ground is a direct cause of soil pollution.

Answer:

A. waste disposal in the ground