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Acid Rain.  

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WHAT CAUSES ACID RAIN When power stations, factories, houses and cars release pollution into the air it has chemicals in it called sulphur dioxide and nitrogen oxides. SULPHUR DIOXIDE: Man-made sulphur dioxide comes mainly from burning fossils fuels in power stations. It then mixes with water in the atmosphere to make sulphuric acid, which will later fall as acid rain. NITROGEN OXIDES: Nitrogen oxides are also man-made and mainly come from car exhausts. These gases also go into the atmosphere and mix with water to form nitric acid, which once again falls as acid rain. WHAT EFFECTS DOES ACID RAIN HAVE ON THE ENVIRONMENT ? SOILS, TREES AND PLANTS. Trees and plants need healthy soil to grow in. Acid rain can damage these important soils by destroying many vital substances and washing away the nutrients. Soils naturally contain small amounts of poisonous minerals such as mercury and aluminium. Normally these minerals do...

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