What are cancer producing molecules that have free radicals and can alter your dna and cause cancer called

The correct answer that would best complete the given statement above would be the term CARCINOGENS. The cancer producing molecules that have free radicals and can can alter your DNA and cause cancer are called carcinogens. When our bodies are exposed to carcinogens, free radicals are formed that try to steal electrons from other molecules in the body. 

The answer is a because - is an direction

Ithink you should go back and learn in school rather then here asking questions