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
Compressions is the correct answer
Assuming you're referring to C.A.B for CPR
Compressions
Airway
Breathing
C would be the correct answer
A is the answer. This is because this was not covered by the Twin studies.
Good luck!
-RxL
Can slow reaction rate, increase temper and can make it harder to concentrate.