Question

develop as a result of long - term exposure to dangerous materials like silica.
non - occupational injuries
physical hazards
chronic health effects
toxicity tests

Explanation:

Chronic health effects occur due to long - term exposure to harmful substances like silica. Non - occupational injuries are not work - related injuries. Physical hazards refer to physical agents (e.g., noise, radiation). Toxicity tests are experiments to determine the toxicity of substances.

Answer:

Chronic health effects