12-3 acid precipitation page 314. a. what causes acid precipitation? 1. precipitation (rain, snow,...
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12-3 Acid Precipitation
Page 314
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A. What causes acid precipitation?
• 1. Precipitation (rain, snow, or sleet) that contains a high concentration of acids.
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A. What causes acid precipitation?
• 2. Burning of fossil fuels releases nitrogen and sulfur which combine with water vapor in the atmosphere.
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A. What causes acid precipitation?
• 3. Sulfuric and Nitric acids form and fall as acid rain.
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A. What causes acid precipitation?
• 4. pH can be used to measure how acidic(1-6) or basic (8-14) a substance is.
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A. What causes acid precipitation?
• 5. Pure water is neutral and has a pH of 7.
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B. How acid precipitation affects soils and plants
• 1. It lowers the pH of soil and water.
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B. How acid precipitation affects soils and plants
• 2. An increase in the concentration of acid is called acidification.
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B. How acid precipitation affects soils and plants
• 3. Plants suffer because some nutrients get dissolved and washed away while the roots become damaged.
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C. Acid Precipitation and Aquatic Ecosystems
• 1. Ph levels that are too low kill fish.
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C. Acid Precipitation and Aquatic Ecosystems
• 2. Acid also causes aluminum to leave soil and enter water source which slowly suffocates fish by getting stuck in their gills.
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C. Acid Precipitation and Aquatic Ecosystems
• 3. In the spring, acidic ice from winter melts and enters water which causes acidic shock (sudden increase of acid).
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D. Acid Precipitation and Humans
• 1. Released aluminum and mercury may find its way into fish, crops, and water.
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D. Acid Precipitation and Humans
• 2. Possibly linked to respiratory diseases.
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D. Acid Precipitation and Humans
• 3. Negatively affects fisheries and forestry.
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D. Acid Precipitation and Humans
• 4. Dissolves calcium carbonate which is common in concrete, marble, and limestone.
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E. International Conflict and Cooperation
• 1. One problem with acid precipitation is that pollutants may be released in one spot and fall in another spot.
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E. International Conflict and Cooperation
• 2. For example, some acid rain that falls in Canada in produced by the US.
• 3. The Canada-U.S. Air Quality Agreement was signed in 1991.