In my honest opinion, i would think it would be the C the burning of plastic in open burn barrels I am only saying that because my asthma acts up when there is fire or smoke and I think that's the best option.
Archean and Proterozonic which are both broken into early middle and late periods
D. Chloroplast is only found in plant cells not in animal cells
Extinction of species reduces the number of different species in ecosystems, hence lowering the diversity of living things.
