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卡片总数: 1 张•内容版本: v4•公开卡包•更新时间: 8/1/2026
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#1
正面 (问题)
Mineral Ore and fossil fuels are considered non-renewable resources. What does non-renewable mean?
背面 (解答)
Non-renewable means that the resource takes millions of years to form in very specific ways and humans could use it all up.