Cod liver oil - a potentially toxic source of Vitamin A: Hypervitaminosis A can result from ingestion of too much vitamin A from diet, supplements, or prescription medications.
This visible light region consists of a spectrum of wavelengths that range from approximately 700 nanometers (abbreviated nm) to approximately 400 nm. Expressed in more familiar units, the range of wavelengths extends from 7 x 10 -7 meter to 4 x 10 -7 meter.
the levels reaching the Earthâs surface. The sun emits energy over a broad spectrum of. wavelengths: visible light that you see, infrared radiation that you feel as heat, and ultraviolet. (UV) radiation that you canât see or feel. UV radiation has a shorter wavelength and higher. energy than visible light.