Visible light is a part of the electromagnetic spectrum that can be seen by the human eye. It consists of different colors, which range from red to violet, each with its own wavelength. The wavelengths of visible light are approximately between 400 and 700 nanometers. This light is essential for various processes, including photosynthesis in plants, which allows them to convert sunlight into energy. Additionally, visible light plays a crucial role in vision, enabling humans and animals to perceive their surroundings and interact with the environment.