if cancer is basically a clump of cells that dont want to die, why/how do things like cigarettes, asbestos, and the literal sun trigger it?

Question

if cancer is basically a clump of cells that dont want to die, why/how do things like cigarettes, asbestos, and the literal sun trigger it?

In: Biology

Answer 1

A lot of people are saying stuff like carcinogens are the cause and mutations and etc without actually answering the question

Sun releases ionizing radiation which can knock electrons out in the DNA, thus changing it

Chemicals can cause stuff like DNA methylation to happen where the transcription and translation process of the DNA get affected so new cells can get made incorrectly etc