Unconventional oil is petroleum produced or extracted using techniques other than the conventional (oil well) method. Oil industries and governments across the globe are investing in unconventional oil sources due to the increasing scarcity of conventional oil reserves.nconventional oil consists of a wider variety of liquid sources including oil sands, extra heavy oil, gas to liquids and other liquids. In general conventional oil is easier and cheaper to produce than unconventional oil.
There are three major types of skin cancers: basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and melanoma. The first two skin cancers are grouped together as non-melanoma skin cancers. Other unusual types of skin cancer include Merkel cell tumors and dermatofibrosarcoma protruberans.
Types of Skin Cancer Most Common and Rare Types. 3 types of skin cancer most common are basal cell cancer, squamous cell skin cancer and melanoma cancer. Skin cancer pictures - learn the rare types such as kaposi sarcoma, sebaceous gland carcinoma.. How to Prevent Skin Cancer Beginning With A Cancer Prevention Diet.