Acid Rain

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Information about Acid Rain
Science-Technology

Published on October 30, 2008

Author: aSGuest2119

Source: authorstream.com

Slide 1: What are the consequences of our pollution ? A major consequence: acid rains DEFINITION : DEFINITION Different types of atmospheric pollution Natural phenomena Human activities + Release chemical substances such as dry or humid deposits that can increase or decrease the impact of acid rains. Slide 3: What are the origins of ACID RAINS ? Human activities are at the origin of important quantities of polluting items that are thrown out in the atmosphere and which contibute to acid rains . Slide 4: Gases which are at the origin of acid rains are : Sulphur dioxyde Carbon dioxyde Nitrogen oxide Slide 5: Acid rains appear when : Sulphur dioxyde Nitrogen oxide Release sulphuric acid and nitric acid ! They move up into the air and are released as acid rains Slide 6: What are the consequences of acid rains on the environnement ? On top of the disastrous consequences on our health, the different components of our environment can be affected by acid rains : water ground materials plants Slide 7: Consequences on water and the wildlife of lakes The water looks more transparent because plankton has disappeared Fish can’t breathe properly, different species disappear Slide 8: Consequences on materials The acid effect of acid rains prompts : The corrosion of metal items The erosion of railways Stone disintegration into dust Unfortunately monuments are not spared by pollution !! Slide 9: Consequences on plants and forests Acid rains take part: Under the action of polluting factors in the gradual death of forests !! the permeability of leaves, needles and plants are altered !! Slide 10: The fight against acid rains is only starting !! How to prevent acid rains ? Slide 11: Producing more and more electricity thanks to wind or water power in order to Use fewer and fewer power stations Slide 12: Building vehicles that : use less petrol or energy and are equipped with catalytic converters Slide 13: Not driving as fast on motorways, with a maximum speed of 110 Km/h instead of 130 Km/h Slide 14: Using : bicycles for short distances public transport as often as possible car-sharing

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