Which provides evidence that radiation from the sun of heat planet earth
There are several lines of evidence to support the fact that radiation from the sun heats planet Earth:
1. Solar radiation spectrum: The spectrum of solar radiation reaching Earth's atmosphere consists of various wavelengths, including visible light, infrared radiation, and ultraviolet radiation. This broad range of wavelengths indicates that energy from the sun is reaching Earth in the form of electromagnetic radiation.
2. Solar energy input: The amount of solar energy reaching Earth's surface is measured and monitored by satellites and ground-based instruments. These measurements show that Earth receives a significant amount of solar energy, which is essential for maintaining the overall temperature balance on the planet.
3. Heating effect of sunlight: When sunlight reaches Earth's surface, it is absorbed by various materials, including land, water bodies, and the atmosphere. This absorption of solar radiation leads to the heating of these materials, resulting in an increase in their temperature.
4. Greenhouse effect: Solar radiation that is absorbed by Earth's surface is re-radiated back into the atmosphere as infrared radiation. Certain greenhouse gases in the atmosphere, such as carbon dioxide and water vapor, can trap this infrared radiation. This phenomenon, known as the greenhouse effect, leads to the further heating of the Earth's atmosphere.
5. Solar radiation measurements: Scientists measure solar radiation at various locations around the globe. These measurements indicate the amount of solar energy received at different latitudes, which corresponds to variations in temperature and climate patterns.
6. Climate models: Scientists use climate models that incorporate the input of solar radiation to simulate Earth's climate system. These models can accurately reproduce observed temperature patterns and variations, providing strong evidence that solar radiation plays a crucial role in heating the planet.
Collectively, these pieces of evidence prove that the radiation from the sun is responsible for heating planet Earth.