What is skin cancer called?

Select the true statements.
$I.$ Cancer can be detected by the use of antibodies against cancer-specific antigens for certain types of cancer.
$II.$ The tumor cells are surgically removed to reduce the load of cancerous cells.
$III.$ Certain chemotherapeutic drugs are used to kill the cancerous cells,but the majority of the drugs have side effects like hair loss,anaemia,etc.

Which group of diseases cannot be classified as infectious diseases?

Which disease is commonly caused by tobacco smoking?

$X$-rays damage $DNA$ and convert it into.........

Cancer can be caused by the use of