How do asbestos and radon differ?

Answer 1

Asbestos is a naturally occurring mineral that has had many commercial uses during the last century, so it can be found in many building materials and other objects. Excessive exposure through inhalation can result in asbestosis, lung cancer, or mesothelioma (another kind of cancer). Asbestos seems to produce cancer through the physical interaction of its fibrous structure with living cells. Radon is a naturally occurring radioactive gas with no significant commercial application. Excessive exposure through inhalation can result in lung cancer. Radon produces cancer because it emits ionizing radiation which in turn produces cancer upon sufficient exposure.

Answer 2

The only similarity between asbestos and radon is that both can produce lung cancer. However, as even the mechanism by which that cancer is produced is very different, there is no useful similarity between these two materials.