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10 Terms
1
What are the primary pollutants that contribute to acid deposition?
NOx (Nitrogen oxides) and SO2 (Sulfur dioxide)
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2
What is the major source of SO2 emissions?
Coal-fired power plants, metal factories, and vehicles that burn diesel fuel.
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3
How can acid rain be limited?
By reducing NOx and SO2 emissions through measures such as raising CAFE standards, using renewable energy resources, increasing public transit, and improving electricity efficiency.
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4
What was the impact of the Clean Air Act on acid deposition in the U.S.?
It led to a dramatic decrease in acid deposition, particularly in the eastern United States.
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5
What are secondary air pollutants formed from NOx and SO2?
Nitric acid and sulfuric acid.
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6
How do H+ ions affect soil nutrients?
H+ ions can displace essential positively charged soil nutrients such as calcium, potassium, and magnesium.
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7
What happens when aluminum becomes more soluble due to acid rain?
Aluminum can become toxic to plants and aquatic life.
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8
What is the role of limestone in mitigating acid rain?
Limestone neutralizes acidic conditions in soil or water by reacting with H+ ions to form bicarbonate and releasing calcium ions.
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9
What is the significance of pH in relation to acid deposition?
Lower pH indicates a higher concentration of H+ ions and more acidic conditions.
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10
How does acid deposition typically affect plant roots?
It can lead to malformed root structures and reduced plant growth.
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