Respuesta :

nicohersh2
Well the build up of the Carbon dioxide that we exhale, if it doesn't get used by the plants we would have a build up of the Carbon dioxide in the air, which pollutes it. so the air then would be to toxic for the human life forms to live, that includes animals also.


Hope this helps Have a great day
roenkere
First humans wouldn't be able to process correctly second most plants need carbon dioxide to live and we need oxygen to live so we depend on them and they depend on us