Question

Skin cancers are thought to be caused by excessive exposure to the sun. (End with Skin Cancers)​

Answer 1

Answer:

Cumulative sun exposure causes mainly basal cell and squamous cell skin cancer, while episodes of severe blistering sunburns, usually before age 18, can cause melanoma later in life. Other less common causes are repeated X-ray exposure, scars from burns or disease, and occupational exposure to certain chemicals.