Answer: I would say that things like making all factories run on elctricity and not smoke and let it come from the top.
Explanation:This will help because it will reduce smoke/co2 in the air. PS don't put this I'm not completely sure u will get it. Put something like my idea, research what makes the most co2 and say to make it electric
I personally think narrow hand placements are harder for push ups than the wide medium hand placements for push ups. I think that both of the different hand placements uses different muscles, which may be why I feel that the narrow hand placement is harder. Hope I helped!
75 to 128 beats per minute.