I found this on Google to makes me take another look at your #4 answer.
Fundamentally, a greenhouse gas is a gas which is partially opaque to the infrared radiation emitted by earth's surface. Most of them are also transparent to incoming solar radiation, but not all of them: ozone, in particular, is opaque to the incoming ultraviolets.Sep 1, 2003
What are the qualities of a greenhouse gas? Select the two correct answers.
1. Absorbs and re-emits infrared radiation
2. Three or more atoms in a molecule
3. Composed of single atoms not molecules
4. Transparent to infrared radiation*
5. Produced by human activity*
2 answers
Oh thanks
1 answer