UV-B
UV-B is a type of ultraviolet radiation emitted by the sun. It has a shorter wavelength than UV-A and is primarily responsible for causing sunburns and skin damage. While it only makes up a small portion of the sun's total radiation, its effects on human skin can be significant, leading to increased risks of skin cancer.
In addition to its impact on human health, UV-B plays a crucial role in the environment. It helps plants produce vitamin D, which is essential for their growth. However, excessive exposure to UV-B can harm ecosystems, affecting both plant and animal life.