pollution

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pollution by Mind Map: pollution

1. low sulphur fuel

2. catalytic converters

3. greenhouse effect

4. acid rain

4.1. sulphur dioxide

4.2. nitrogen oxides

4.3. weathering

4.3.1. calcium carbonate

4.3.1.1. calcium oxide

4.3.1.2. carbon dioxide

4.4. dead fish

4.5. trees in Norway

4.5.1. lime (calcium hydroxide)

4.5.1.1. neutralisation

5. global warming

5.1. carbon dioxide

5.2. methane

6. burning fossil fuels

6.1. coal

6.2. oil

6.3. natural gas