How cancer is caused?
Please find below the answer:
There could be various causes for cancer, I am listing a few.
1 Some viruses can cause cancer. For example: Epstein-Barr Virus (EBV) makes some people vulnerable to developing cancer.
2. Physical factors like harmful radiation can also be a cause of it.
3. Some cancers can be hereditary too, in other words, they tend to run in families. Some people are at a risk of developing cancer because of gene modification passed from a parent to their offspring.
4. UV (ultraviolet) light from the sun can also cause cancer of the skin.
5. Chemicals such as arsenic, soot, coal tar, tobacco smoke.
Hope this clears your doubt.