What type of UV rays are primarily absorbed by the ozone layer?

The correct answer is UVC rays, which are the type of ultraviolet rays primarily absorbed by the ozone layer. UVC rays are extremely harmful due to their high energy, but fortunately, most of them are absorbed by the ozone layer in the Earth's atmosphere. This absorption occurs at higher altitudes and plays a crucial role in protecting living organisms from the potential damage that UVC rays can cause, including skin cancer and other health issues.

While UVA and UVB rays do reach the Earth's surface, they are less effectively absorbed by the ozone layer compared to UVC rays. UVA rays penetrate the skin more deeply and are associated with aging and some forms of skin damage, while UVB rays are responsible for sunburn and have a more immediate effect on the skin's surface. Understanding the role of the ozone layer in filtering out UVC rays highlights its importance in maintaining ecological and human health.