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Summary The Aurora Borealis, or Northern Lights, are bands of color in the night sky Ancient people thought that these lights were dragon on fire, and even modern scientists are not sure what they are. ACTIVITY 1. SUMMARY- SU-MAR-REE Directions:: Read the following texts and write a summary of 3-5 sentences. 1. "When water in the atmosphere mixes with certain chemicals-particularly sulfur dioxide and nitrogen oxides emitted during the burning of fossil fuels-mild acidic compounds are formed. This acid rain can leach toxic aluminum from the soil, which at low levels can stress fish in lakes and streams or, at . higher concentrations, kill them outright. Acid rain also weakens trees in forests and contributes to air pollution that can harm humans" ("Impacts," 2018, "Acid Rain," para. 1)