Documents 1 Substances in the atmosphere, such as Cu 2 +, Zn 2+, Cl −, and SO 4 2− ions, are carried down....

PowerPoint Presentation 1 SCIENCE Test 1: Passage 2 Substances in the atmosphere, such as Cu2 +, Zn2+, Clâ, and SO42â ions, are carried down to Earthâs surface by precipitation.…