Across
- 2. Gases in the atmosphere that absorb infrared radiation directly from the Sun and from the surface of the Earth. Main greenhouse gasses are carbon dioxide, methane, nitrous oxide and water vapor.
- 6. When the frequency of the energy incident on a system is equal to that of the system’s natural frequency, it vibrates at maximum amplitude.
- 7. a natural substance that is not replenished with the speed at which it is consumed
- 9. a resource of which there is an endless supply because it can be replenished
- 10. The absorption of thermal energy in the Earth surface–atmosphere system due to the naturally occurring concentrations of greenhouse gasses in the atmosphere.
- 11. A measure of the amount of solar electromagnetic radiation reaching the Earth's outer atmosphere per unit area per second.
- 12. The observation that the wavelength of a high energy photon increases when it collides with a charged particle.
- 13. A measure of the effectiveness of a surface to emit thermal radiation. It is the ratio of the energy radiated by an object compared to the energy emitted by a black body per unit area at the same temperature and wavelength of radiation.
- 14. A scale diagram used to represent the total input, the useful output and the wasted output energies within a system.
Down
- 1. Climate change that's caused by human activities
- 3. A measure of the fraction of solar radiation that is reflected off a macroscopic system compared to the total incident radiation.
- 4. particles or radiation that fall on a surface
- 5. Natural variations and human activity have increased the concentration of greenhouse gasses in the atmosphere, thus absorbing more thermal radiation in the Earth surface–atmosphere system.
- 8. any scientific law stating that the observed "intensity" of a specified physical quantity is inversely proportional to the square of the distance from the source of that physical quantity.