Pollutants and Plant Growth:
Gas clouds in volcanoes contain a lot of sulfur dioxide which can cause damage. Sulfur dioxide dissolves in water vapour in the air and makes a very strong acid.
Sulfur dioxide can also be produced by power stations. It dissolves in water vapour in clouds and forms sulfuric acid which falls as acid rain. Acid rain destroys trees and can make lakes too acidic for organisms to live in.
What you should Know:
The effects of pollutants on plant germination and growth.
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