Chemistry Major cause of SO2 on global scale is__________________? Options:A. volcanoesB. electric sparksC. combustionD. allView AnswerA. volcanoes Continue Reading Previous: Branch of chemistry that deals with the complete qualitative and quantitative analysis of a substance is___________________?Next: 58.5g of of NaCl per 1 dm3 of solution of NaCl in water the concentration of solution will be___________________?