The correct answer is: B. UV-B
Ultraviolet (UV) radiation is a type of electromagnetic radiation with wavelengths shorter than visible light. It is produced by the sun and other sources, such as tanning beds. UV radiation can cause a variety of health problems, including skin cancer, sunburn, and premature skin aging.
UV radiation is divided into three types: UV-A, UV-B, and UV-C. UV-C has the shortest wavelength and is the most harmful, but it is also the most easily absorbed by the atmosphere. UV-B has a longer wavelength than UV-C, but it is still harmful to human health. UV-A has the longest wavelength of the three types of UV radiation, and it is the least harmful to human health.
UV-B radiation is the most harmful type of UV radiation because it is the most likely to cause skin cancer. UV-B radiation can also cause sunburn, which is a type of skin damage. Sunburn can be painful and can increase the risk of skin cancer.
UV-A radiation is less harmful than UV-B radiation, but it can still cause skin damage. UV-A radiation can cause premature skin aging, such as wrinkles and age spots. UV-A radiation can also damage the eyes, causing cataracts and macular degeneration.
All types of UV radiation can be harmful to human health. It is important to protect yourself from UV radiation by wearing sunscreen, sunglasses, and protective clothing. You should also avoid tanning beds, which emit UV radiation.
Here is a brief explanation of each option:
- UV-C is the most harmful type of UV radiation, but it is also the most easily absorbed by the atmosphere. UV-C radiation is not a major concern for human health because it is not able to reach the Earth’s surface.
- UV-B is the type of UV radiation that is most likely to cause skin cancer. UV-B radiation can also cause sunburn, which is a type of skin damage. Sunburn can be painful and can increase the risk of skin cancer.
- UV-A is less harmful than UV-B radiation, but it can still cause skin damage. UV-A radiation can cause premature skin aging, such as wrinkles and age spots. UV-A radiation can also damage the eyes, causing cataracts and macular degeneration.
- All the above is not the correct answer because UV-C is not a major concern for human health.