题目内容

形成酸雨的主要物质是什么现取一份雨水样，每隔一定时间测其pH，数据如下：说明雨水样pH变形成酸雨的主要物质是什么现取一份雨水样，每隔一定时间测其pH，数据如下：说明雨水样pH变小的主要原因。正常雨水的pH为6～7，以上所取的雨水已大大偏离正常值，会给环境带来哪些危害

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