Explanation:

• Ultraviolet (UV) is a type of light or radiation naturally emitted by the Sun.
• Ultraviolet (UV) light has shorter wavelengths than visible light. It covers a wavelength range of 100-400 nm.
• The human visible light ranges from 380–700 nm.
• UV is divided into three bands: UV-C (100-280 nm), UV-B (280-315 nm) and UV-A (315-400 nm).
• UV-A and UV-B rays from the Sun are transmitted through our atmosphere and all UV-C is filtered by the ozone layer.

Hence all statements are correct.