In the United States, which type of cancer is responsible for
the most cancer deaths in males and females?
A. Pancreas
B. Lung
C. Bladder
D. Breast
2. True or false: Many cancer deaths are preventable.
3. A _______ is an environmental factor, such as radiation,
tobacco smoke, or a particular virus, that can trigger cancer.
A. carcinogen
B. tumor
C. gene
D. mutation
4. Which type of tumor is not considered to be cancerous because
the tumor’s cells do...