Correct procedures must be followed when working with asbestos because it:

The focus on the correct answer emphasizes the health risks associated with asbestos exposure. Asbestos is a well-documented carcinogen, meaning it can cause cancer when inhaled or ingested. The fibers can become airborne and, if inhaled, can lead to serious health issues, including lung cancer, mesothelioma, and asbestosis. This is why strict regulations and procedures are required when handling asbestos to minimize exposure and protect public health.

The other options, while they may highlight risks related to other materials, do not apply to asbestos. It is not highly flammable, does not produce poisonous gas in the manner suggested, and is not classified as an explosive material. The understanding of asbestos as a cancer-causing substance underscores the need for careful abatement and management practices in any environment where it may be present.