By Anne Marie Helmenstine, Ph.D. Combustion Definition: Combustion is a chemical reaction chemical that occurs between a fuel and an oxidizing agent that produces energy, usually in the form of heat and light.Related Articles.ombustion Definition: Combustion is a chemical reaction chemical that occurs between a fuel and an oxidizing agent that produces energy, usually in the form of heat and light. Related Articles.
It is important to note then that whether a person decides to use alcohol or drugs is a choice, influenced by their environmentâpeers, family, and availability. But, once a person uses alcohol or drugs, the risk of developing alcoholism or drug dependence is largely influenced by genetics.Alcoholism and drug dependence are not moral issues, are not a matter of choice or a lack of willpower.hen an animal eats a certain food that it likes, there is an advantage to associating pleasure with that food so that the animal will look for that food in the future. In other words, the genetic potential for addiction is hardwired into our brain. But some people are better at knowing when enough is enough.
Alcoholism and Genetics. Genes do seem to play a role in the development of alcoholism, yet there are other causes also. There are many who believe, and research seems to back them up, that the child of an alcoholic mother or father is more likely to become drink dependent. In other words there is a link between alcoholism and genetics. Statistics seem to support the alcoholism genetics link: The COGA (the Collaborative Study on the Genetics of Alcoholism) states that the child of a drink dependent parent is 4 to 9 times more likely to develop the same problem.