"although if the main cause was radiation you wouldn't expect a few specific types to increase significantly and not others." How do you figure? I don't think

"although if the main cause was radiation you wouldn't expect a few specific types to increase significantly and not others." How do you figure? I don't think all of the causes of cancers are well understood. But, I know that cervical cancer is highly correlated with HPV, skin cancer is highly correlated with sun exposure, stomach cancer is highly correlated with H. Pylori, and lung cancer is highly correlated with tobacco smoking. And, for that matter, that cancers seem to have wildly different occurrence rates to begin with.