Question

What causes cancer ​

Answer 1

a number of forces can cause gene mutations such as smoking, radiation, viruses ,cancer causing chemicals(carcinogens) ,obesity hormones ,chronic inflammation and lack of exercise

Answer 2

Step-by-step explanation:

Cancer is caused by accumulated damage to genes. Such changes may be due to chance or to exposure to a cancer causing substance. The substances that cause cancer are called carcinogens. A carcinogen may be a chemical substance, such as certain molecules in tobacco smoke.