Acid rain is caused by sulphur dioxide spewed from factories and power plants. It happens when airborne acids fall down to Earth in rain.Electrical utility plants that burn fossil fuels emit chemicals into the atmosphere that react with water and other chemicals in the air to form sulfuric acid, nitric acid -- the "acid" in acid rain
答：What a heavy rain ! a rain是一场雨 what an exciting news! an news 一条新闻 what fi...详情>>
答：个评分来自于“EWG”的成分安全评价标准，美丽修行上的成分安全分以1-10表示，数字越小代表成分越安全。10分代表的是最高安全分，意味着该产品的成分非常安全，对...详情>>
