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Acid Rain Practice Test
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Q1
A lake in a granitic watershed shows a long-term decline in pH from 6.3 to 4.9 after decades of regional SO₂ emissions. The fish population collapses when pH falls below ~5.0. Based on this stimulus, which impact is most directly linked to acid rain in freshwater ecosystems?
A lake in a granitic watershed shows a long-term decline in pH from 6.3 to 4.9 after decades of regional SO₂ emissions. The fish population collapses when pH falls below ~5.0. Based on this stimulus, which impact is most directly linked to acid rain in freshwater ecosystems?