A list of things that can cause cancer:
1. Tobacco
2. Ultraviolet (UV) radiation
3. Alcohol
4. Asbestos
5. Radon gas
6. Certain viruses and infections
7. Processed meats
8. Red meat
9. Air pollution
10. Diesel engine exhaust
11. Benzene
12. Formaldehyde
13. Arsenic
14. Glyphosate (herbicide)
15. Hormone replacement therapy (HRT)
16. Ionizing radiation
17. Aflatoxins
18. Coal tar
19. Lead
20. Pesticides and herbicides