【多选题】【消耗次数：1】
有关生态环境与自然资源的关系，下列说法正确的是（）。
①
很多自然资源具有两重性，既是自然资源，又是自然环境要素
②
自然资源与生态资源基本等同，包括生物资源与非生物资源两大类
③
生态环境所包括的要素范围大于自然资源
④
自然资源所包括的要素范围大于生态环境
⑤
自然资源，是指在一定经济和技术条件下自然界中可以被人类利用的物质和能量
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