酸雨知识小解一、什么样的雨水称酸雨?答:一般地说,天然降水都是偏酸性的,pH约在6左右.这是因为大气中的CO2有少量的能溶解到雨水中,生成微量的碳酸,从而使雨水略显酸性.这种略显酸性的雨水进入土壤中,能促使土壤养分的溶解,利于植物的吸收.不过,当雨水的酸度增大,pH小于5.6时,对生态就会产生不良的影响.因而,人们把 A: In general, natural precipitation is acidic, pH is about 6. This is because a small amount of CO2 in the atmosphere can be dissolved into the rain water to generate Trace amount of carbon acid, so that the rain slightly acidic. This slightly acidic rain into the soil, can promote the dissolution of soil nutrients conducive to plant absorption. However, when the rain acidity increases, the pH is less than 5.6, the ecological It will have a negative impact. Therefore, people put it