What is 20 percent of the radiation from the sun?

Twenty percent of the radiation from the sun refers to the portion of solar energy that reaches the Earth's atmosphere. This radiation includes visible light, ultraviolet light, and infrared radiation, which are essential for life on Earth. The remaining 80 percent is absorbed or scattered by the atmosphere before it reaches the surface. Ultimately, the radiation that reaches the Earth's surface is crucial for climate, weather patterns, and supporting ecosystems.