What are the three different types of skin cancer

The different types of skin cancer are named for the skin cell where the cancer develops: basal cell carcinoma, squamous cell carcinoma and melanoma.

what's the question ?

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.