The correct answer is C. Skin cancer.
The ozone layer is a region of Earth’s stratosphere that absorbs most of the Sun’s ultraviolet radiation. It contains high concentrations of ozone (O3) relative to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. The ozone layer contains less than 10 parts per million of ozone, while the average ozone concentration in Earth’s atmosphere as a whole is about 0.3 parts per million. The ozone layer is mainly found in the lower portion of the stratosphere, from approximately 20 to 30 kilometers (12 to 19 mi) above Earth, although its thickness varies seasonally and geographically.
The ozone layer is important because it protects life on Earth from harmful ultraviolet radiation. Ultraviolet radiation can cause skin cancer, cataracts, and other health problems. The depletion of the ozone layer is caused by human activities, such as the release of chlorofluorocarbons (CFCs) into the atmosphere. CFCs are chemicals that were once used in refrigerators, air conditioners, and other products. When CFCs reach the stratosphere, they break down and release chlorine atoms. These chlorine atoms react with ozone molecules, destroying them.
The depletion of the ozone layer is a serious problem that has the potential to cause significant harm to human health and the environment. It is important to take steps to protect the ozone layer, such as reducing our use of CFCs and other ozone-depleting substances.
Blood cancer is a type of cancer that starts in the blood cells. The most common types of blood cancer are leukemia, lymphoma, and myeloma. Blood cancer can be caused by a number of factors, including genetics, environmental exposure, and certain infections.
Lung cancer is a type of cancer that starts in the lungs. The most common type of lung cancer is non-small cell lung cancer. Lung cancer can be caused by a number of factors, including smoking, exposure to secondhand smoke, and exposure to certain chemicals.
Breast cancer is a type of cancer that starts in the breasts. The most common type of breast cancer is invasive ductal carcinoma. Breast cancer can be caused by a number of factors, including genetics, age, and certain lifestyle choices.
The ozone layer does not cause any of these types of cancer.