National Weather Service
What Is Acid Rain?
Power stations, factories and cars all burn fuels and therefore they all produce polluting gases.
Some of these gases (especially nitrogen oxides and sulphur dioxide) react with the tiny droplets of water in clouds to form sulphuric and nitric acids.
The rain from these clouds then falls as very weak acid - which is why it is known as "acid rain".
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| | |
| | |
|Which Human Activities |What Effects Does Pollution |
|Pollute the Atmosphere? |Have on People? |
| | |
|Power plants burning fossil fuels, such as coal and oil |Harms trees in our forests, farm crops and other vegetation |
|Exhaust from cars, busses, and trucks |Erodes lakes, rivers and streams |
|Inefficient use of energy in our daily lives |Hurts wildlife, especially aquatic animals like fish and frogs |
| |Causes heart and lung disease, like asthma and bronchitis |
| |Decays buildings, statues, and other outside structures |
THINK: What can people do to reduce pollution?
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