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What is the main idea of sustainable use?

Answer and explanation

Correct answer: Saving resources for the future while meeting present needs

The direct answer is option B: use resources for present needs while saving enough for the future. Sustainable use means taking only what nature can replace and avoiding waste. First, people have genuine needs such as food, water, fuel and wood. Second, resources are limited and may take a long time to renew. Third, careful use allows nature to recover, so future people can also meet their needs. Option A is wrong because finishing resources immediately leaves nothing for tomorrow. Option B is correct because it combines present use with long-term conservation. Option C is wrong because removing wildlife damages ecosystems and is not sustainable use. Option D is wrong because cutting all trees destroys forests, soil protection and habitats. Exam cue: sustainable means balanced, limited and long-term use.

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Sustainable UseResourcesFuture Needs

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