Process:  - Several types of gases form in the atmosphere - May come from different sources - The gases remain trapped in the atmosphere - Through the suns light the gases hold in heat and energy - Trap them in our atmosphere - The earth may become warmer this way.  Perturbation hypothesis: suppose humans may pollute the earth happens, how will it affect the earth will not warm so rapidly.  Does the supposed perturbation have an effect (direct or indirect) on the process?
Answer:
yes