题目内容：
生活中处处有化学，下列说法不正确的是（）。
A可用肥皂水鉴别硬水和软水
B煤、石油、天然气是取之不尽用之不竭的能源
C铁在潮湿的空气中易生锈
D塑料、合成纤维、合成橡胶属于合成材料
答案解析：
单选题：生活中处处有化学，下列说法不正确的是（）。A可用肥皂水鉴别硬水和软水B煤、石油、天然气是取之不尽用之不竭的能源C铁在潮湿的空气中易生锈D塑料、合成纤维、合成橡胶
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