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Practice Quiz 6 - Practice Quiz 6 1 Stephanie and Topher...

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Practice Quiz 6 1. Stephanie and Topher are standing next to the Colorado River in the Grand Canyon. What can be said of the water here? A. The river water is naturally clear, fed by snowmelt from the Colorado Rockies. B. The river water is kept clear by the Park Service to keep the trout healthy. C. The river was naturally muddy, but has been made clear because most of the sediment is settling out in the reservoir behind the dam upstream. D. The river is really filled with 7-UP, hence the green color. E. The river was cleaned up briefly by the Park Service to help Stephanie and Topher in their
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filming. Native species that lived in the muddy waters are now in danger of becoming extinct, because the clear water released from the dam makes those fish too easy for predators to see. Points Earned: 1/1 Correct Answer: C Your Response: C 2. In the picture above, Dr. Alley is discussing events that are happening outside of Grand Canyon National Park, which may impact the park. What are the issues he is discussing? A. Water spread on golf courses is causing flooding in the park.
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