EV-3 FORMATIVE ASSESSMENT by Rithika Rajanish Kallingal https://padlet.com/rithikarajanish/tx2t3mgjwhap0p69 MADE BY: RITHIKA RAJANISH 7B GIRLS en-us 2022-01-09 14:27:41 UTC 2022-01-09 14:40:02 UTC hello@padlet.com https://padlet.net/icons/png/1f327.png Acid Rain rithikarajanish https://padlet.com/rithikarajanish/tx2t3mgjwhap0p69/wish/1982367808 What is Acid Rain?
Acid rain, or acid deposition, is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms.  This can include rain, snow, fog, hail or even dust that is acidic.  



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What Causes Acid Rain?
Acid rain results when sulfur dioxide (SO2) and nitrogen oxides (NOX) are emitted into the atmosphere and transported by wind and air currents. The SO2 and NOX react with water, oxygen and other chemicals to form sulfuric and nitric acids.  These then mix with water and other materials before falling to the ground.

While a small portion of the SO2 and NOX that cause acid rain is from natural sources such as volcanoes, most of it comes from the burning of fossil fuels.  The major sources of SO2 and NOX in the atmosphere are:

  • Burning of fossil fuels to generate electricity.  Two thirds of SO2 and one fourth of NOX in the atmosphere come from electric power generators.
  • Vehicles and heavy equipment.
  • Manufacturing, oil refineries and other industries.
Winds can blow SO2 and NOX over long distances and across borders making acid rain a problem for everyone and not just those who live close to these sources. 


]]> 2022-01-09 14:34:30 UTC https://padlet.com/rithikarajanish/tx2t3mgjwhap0p69/wish/1982369422 rithikarajanish https://padlet.com/rithikarajanish/tx2t3mgjwhap0p69/wish/1982370298 Why is acid rain a concern?

The pollution that causes acid rain can also create tiny particles. When these particles get into people's lungs, they can cause health problems, or can make existing health problems worse. ... This ground-level ozone causes respiratory problems, like pneumonia and bronchitis, and can even cause permanent lung damage.

]]> 2022-01-09 14:35:48 UTC https://padlet.com/rithikarajanish/tx2t3mgjwhap0p69/wish/1982370298 What are the environmental problems caused by acid rain and what measures are to be taken against it? rithikarajanish https://padlet.com/rithikarajanish/tx2t3mgjwhap0p69/wish/1982371675 A great way to reduce acid rain is to produce energy without using fossil fuels. Instead, people can use renewable energy sources, such as solar and wind power. Renewable energy sources help reduce acid rain because they produce much less pollution.

  • Reduce amount of sulphur dioxide and oxides of nitrogen released into the atmosphere. ...
  • Use cleaner fuels. ...
  • Flue Gas Desulphurisation (FGD) ...
  • Use other sources of electricity (i.e. nuclear power, hydro-electricity, wind energy, geothermal energy, and solar energy)

Acid rain increases acidity in bodies of water like streams and lakes. This alone damages aquatic organisms; however, an increase in acidity also causes aluminium um that is found in soil to be leached into bodies of water. The combined impact of aluminium um and acidity causes damage to aquatic ecosystems.
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