I want to know the answer to the following question:
Along with water vapor, what atmospheric substance primarily absorbs the infrared emitted by the Earth?
All the background I'm provided with is that "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.". Is that enough to answer the question?