2. Atmospheric gases allow sunshine to pass through but absorb heat that is radiated back from the surface of the earth. This acts as a blanket keeping heat close to the earth’s surface.

3. Greenhouse Effect Incoming solar radiation = short wavelength Outgoing infrared radiation = long wavelength

4. Solar Radiation Infrared Radiation

10. -essential, natural process that helps keep earth warm -too much greenhouse gas increases effect and leads to global warming

11. Water Vapor Carbon Dioxide Methane Nitrous Oxide

12. animation greenhouse