A by-product of photosynthesis that is not used by the plant, but rather released into the air, is .

I think is carbon dioxide!!

Explanation: ( i havent learned about photosynthesis in a long time :) )

hope i helped!! also have a good day!

first you need to be honestly with him on how you feel no matter whT but you will get threw this break ups are hard but it only goes up!! just keep your head up and be strong take sometime to yourself pamper yourself a bit.