Survey Says: Top which gas are you results, Weird Survey Selectsmart.com
The top 2 which gas are you results of 29 participants. Percentages indicate the frequency of the self-selected participants' top results for which gas are you.      
#1
86.2%
methane
#2
0.0%
nitrous oxide
Privacy statement.
All Rights Reserved. SelectSmart® is a registered trademark.