The Clydesdale is a draft horse breed from Lanarkshire, Scotland, and its name was inspired by the River Clyde. The Clydesdaleâs history goes back to the mid-1700s, when native stocks were mated with larger Flemish horses and then selected for use in agriculture and for all types of heavy hauling, including transport through the streets of Glasgow.
Definition. 1  A carcinogen is a substance that causes cancer (or is believed to cause cancer). 2  A carcinogenic material is one that is known to cause cancer. 3  The process of forming cancer cells from normal cells or carcinomas is called carcinogenesis. A carcinogenic material is one that is known to cause cancer. 2  The process of forming cancer cells from normal cells or carcinomas is called carcinogenesis.
There are many examples of carcinogens in our environment. Most people are aware of the common carcinogens. These include tobacco and tobacco smoke, pesticides used to control bugs, asbestos, radon, and arsenic. What we aren't aware of is how many carcinogens are present in our everyday products, foods, and environment. carcinogen is a substance that is capable of causing cancer. Carcinogens do this by increasing the rate of cellular division, which increases the probability of abnormal DNA synthesis.