Because you need to make sure that your dishes and things are clean, and not dirty, so you can use them again and all that.
Answer:
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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
You would start by removing anything negative of 2
