13. Paragraph B:
14. Paragraph E:
Answer: 40 million people.
Explanation: The final sentence of Paragraph 4 states that hypoxia and pollution threaten “the livelihoods of 40 million people” around Lake Victoria.
Gap-fill text:
Lakes are threatened by _______, which causes oxygen depletion, and by rising _______ due to climate change. In addition, _______ species can outcompete native wildlife.
Answers:
Answer: Lake Washington (United States) and Lake Biwa (Japan).
Explanation: Paragraph 5 cites these as positive examples where intervention led to partial recovery, offering hope for other degraded lakes.
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