Text 1: 'Hydroelectric dams generate clean renewable energy and provide flood control.' Text 2: 'Dams obstruct fish migration corridors and drown critical riparian wetlands upstream.' How do the authors differ?

Answer and explanation

Correct answer: D. Text 1 highlights infrastructural utility, while Text 2 emphasizes ecological costs

  1. Step 1: Text 1 emphasizes benefits (renewable energy, flood control). Text 2 emphasizes environmental damage (blocked fish migration, drowned wetlands). Step 2. The difference is utility benefits vs. ecological costs. Answer: Text 1 highlights infrastructural utility, while Text 2 emphasizes ecological costs. Why not the others: Text 1 does not advocate decommissioning; they do not agree on bans; Text 2 explicitly details hydrological changes.

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