Final answer:
Some risk factors for certain types of cancers are radiation exposure, neurofibromatosis 2, and female sex. Environmental factors and inherited genetic mutations also play crucial roles in cancer risk.
Step-by-step explanation:
The risk factors mentioned—radiation exposure, neurofibromatosis 2, and female sex—are typically associated with certain types of cancers. Ionizing radiation is well-known to increase the risk of cancers such as leukemia and thyroid cancer. Neurofibromatosis 2 is a genetic disorder that can lead to the development of benign and malignant tumors, including brain and spinal cord tumors. Lastly, being female is a known risk factor for certain cancers, including breast and ovarian cancer. Environmental risk factors contribute significantly to cancer incidence as well, with at least 90 percent of human cancers having an environmental component. This includes exposure to cancer-causing carcinogens like tobacco smoke, automobile exhaust fumes, and certain toxic metals, as well as radiations such as X-rays and ultraviolet light. Inherited genetic mutations are also important, with mutant genes such as BRCA1 and BRCA2 greatly increasing the risk of breast and ovarian cancer.