Which statement about earthworms and broad-spectrum insecticides is supported by the material?

Which statement about earthworms and broad-spectrum insecticides is supported by the material?

• A. Earthworms thrive when such insecticides are used
• B. Earthworms are never affected by such insecticides
• C. They can harm earthworms
• D. They have no impact on earthworms

Answer: (C)

Broad-spectrum insecticides, while aimed at pests, can affect non-target organisms living in the soil, including earthworms. These chemicals can be toxic if earthworms come into contact with treated soil or ingest contaminated material, leading to harm, impaired reproduction, or mortality. This is why the statement that they can harm earthworms is the supported one. The other options contradict real-world effects of insecticides on soil life and aren’t supported by the material.