In Greenhouse gases, which option helps you describe the process in the right order: Define greenhouse gases as gases that absorb infrared radiation emitted from the Earth's surface?

The correct option is By absorbing and re-emitting infrared radiation. For this process question, that option is correct because it matches Define greenhouse gases as gases that absorb infrared radiation emitted from the Earth's surface in Greenhouse gases.

By absorbing and re-emitting infrared radiation is the correct answer for this AQA GCSE Chemistry atmosphere question. Check whether the option keeps the chemistry sequence in the correct direction. The learning objective is: Define greenhouse gases as gases that absorb infrared radiation emitted from the Earth's surface. In Carbon dioxide and methane as greenhouse gases, this means the explanation must use the subtopic Greenhouse gases and avoid drifting into a different gas, pollutant, climate, or early-atmosphere idea. Checkpoint 5: this page uses the process angle so students can practise one distinct reasoning route before moving to the next question.