UVB radiation refers to a specific type of ultraviolet (UV) radiation that is found in sunlight. It has a wavelength range of 280-320 nanometers. UVB radiation is known to have both beneficial and harmful effects on living organisms. On the one hand, UVB radiation plays a key role in the production of vitamin D in the skin, which is essential for maintaining healthy bones and immune function. However, excessive exposure to UVB radiation can also cause damage to the DNA in skin cells, leading to sunburn, skin aging, and an increased risk of skin cancer. Researchers in the field of UVB radiation study the effects of UVB exposure on human health, as well as ways to protect against the harmful effects of UVB radiation, such as using sunscreen, protective clothing, and seeking shade during peak UV times. They also investigate the role of UVB radiation in various environmental processes, such as its impact on ecosystems and climate change.