Task: Question Answering
Input (English): 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.
 Question: What is the effect of humans may pollute the earth on more gases form in the atmopshere.?
Output (English): for