The greenhouse effect — AQA GCSE Combined Science Synergy
Teaching note based on the AQA specification.
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- Greenhouse gases in the atmosphere maintain temperatures on Earth high enough to support life. They allow short-wavelength radiation from the Sun to pass through the atmosphere to the Earth’s surface but absorb the outgoing long- wavelength radiation from the Earth’s surface, causing an increase in temperature. Water vapour, carbon dioxide and methane are greenhouse gases that increase the absorption of outgoing, long-wavelength radiation.