Context: Earth's surface and the clouds absorb visible and invisible radiation from the sun and re-emit much of the energy as infrared back to atmosphere. Certain substances in the atmosphere, chiefly cloud droplets and water vapor, but also carbon dioxide, methane, nitrous oxide, sulfur hexafluoride, and chlorofluorocarbons, absorb this infrared, and re-radiate it in all directions including back to Earth. Thus, the greenhouse effect keeps the atmosphere and surface much warmer than if the infrared absorbers were absent from the atmosphere.

Question: Along with the surface of the Earth, what objects absorb radiation from the sun?
Answer: clouds

Question: After Earth surface's absorbs radiation, in what spectrum is much of it re-emitted?
Answer: infrared

Question: Along with water vapor, what atmospheric substance primarily absorbs the infrared emitted by the Earth?
Answer: cloud droplets

Question: What notable warming effect does the presence of infrared absorbers contribute to?
Answer: greenhouse

Question: What does the greenhouse effect absorb from the sun?
Answer: Unanswerable

Question: After Earth absorbs methane, in what spectrum is it re-emitted?
Answer: Unanswerable

Question: What substances absorb the sulfur hexafluoride emitted by the Earth?
Answer: Unanswerable

Question: What keeps the atmosphere and surface re-radiated?
Answer: Unanswerable

Question: What substances emit water vapor back to the atmosphere?
Answer: Unanswerable