水体污染物的转化是指（）。 -题库考试答案搜索网

水体污染物的转化是指（）。

单选题

2021-12-26 18:13

A、污染物从一点转移到另一点
B、污染物从一种介质转移到另一种介质
C、污染物改变了原有的化学性质、毒性和生物学效应
D、污染物在水中逐渐扩散，以致浓度降低
E、污染物在水中只发生浓度的变化

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正确答案

A

试题解析

水体污染物的转化是指污染物在水体中发生物理化学、光化学和生物学作用后，改变了原有的形态或分子结构，以致改变了原有的化学性质、毒性和生物学效应。水体污染物的迁移是指污染物在水体中不同地点和不同介质直接的转移过程。

标签：基础知识综合练习基础知识强化练习题全科医学(医学高级)

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