Acid rain primarily comes from compounds based on what two substances? 1-mercury and VOCs
2-carbon dioxide and methane
3-CFCs and HFCs
4-nitrogen and sulfur oxides

Which of the following matches the organisms described with the correct domain? a. archaea--multicellular, eukaryotic organisms that do not have cell walls b. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sources c. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycan d. bacteria--unicellular, eukaryotic organisms that always lack cell walls