A carcinogen is any environmental factor such as asbestos, tobacco smoke, radiation, or a virus that triggers cancer.Group startsTrue or FalseTrue, unselectedFalse

Explain why it would be incorrect to classify cancer as a disease caused by environmental factors.3 marks

Chemicals or agents that cause cancer are calledQuestion 3Answera.mutagenicb.neurotoxinsc.teratogenicd.carcinogenic

A substance that produces cancer is said to be a(n)

True or False? Up to 75% of all cancers are linked to behaviors such as smoking and poor diet.Question 8Answera.Trueb.False

Cigarette smoke is know to cause cancer. Give TWOpossible reasons to explain why carcinogenesis mayoccur in some smokers but not the others