What is the consequence of improper disposal of toxic materials?

• A. Air quality improvement.
• B. Increased soil fertility.
• C. Soil and water contamination.
• D. Enhanced biodiversity.

Answer: (C)

Improper disposal of toxic materials leads to environmental contamination. When hazardous substances are not handled and discarded correctly, they can leak from containers, migrate through soil with rainwater, and infiltrate groundwater and surface waters. These toxins persist in the environment, harming plants, animals, and human health, and requiring costly cleanup. Soil can become poisoned, reducing fertility and harming microorganisms, while contaminated water can affect ecosystems and make drinking water unsafe. That combination—polluted soil and polluted water—is the most direct and widespread consequence. Other potential outcomes, like improving air quality, increasing soil fertility, or boosting biodiversity, do not align with what toxic contaminants do when mishandled; they typically cause harm rather than improvement.