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Pollution
- Air Pollution
- Causes
- Combustion of fossil fuels (in engines and power stations)
- Combustion of fossil fuels (in engines and power stations)
- Effects
- Smokes deposits soot on buildings and trees, causing them damage
- Also permeates the air making it difficult to breathe
- Also permeates the air making it difficult to breathe
- Carbon monoxide is poisonous
- Carbon dioxide contributes to greenhouse effect
- Which contributes to global warming
- Which contributes to global warming
- Sulfur dioxide contributes to acid rain
- Smokes deposits soot on buildings and trees, causing them damage
- Indicators
- Bushy lichens need really clean air to survive
- Crusty lichens can survive in more polluted air
- Bushy lichens need really clean air to survive
- Causes
- Water Pollution
- Indicators
- Fresh water shrimp and stonefly - clean water
- Sludgeworm and bloodworm - clean water
- Fresh water shrimp and stonefly - clean water
- Causes
- Nitrate fertilisers washed off into rivers and reservoires
- Sulfur dioxide in the air dissolves in seas and oceans
- Pesticides used by farmers washed of into rivers
- Nitrate fertilisers washed off into rivers and reservoires
- Effects
- Death of aqautic organisms
- Makes drinking water unhealthy, unsafe and unclean
- Death of aqautic organisms
- Indicators
- Eutrophication
- Excessive richness of nutrients in a body of water which causes a dense
growth of plant life
- Algal bloom
- 1. Nutrients from fertilisers are washed off into rivers
- 2. Pollutants encourage the growth of algae and other plants
- 3. Algae blooms, preventing sunlight reaching other plants and hence, oxygen depletes
- 4. Dead plants are decomposed by bacteria, further depleting oxygen
- 5. As a result, the aquatic ecosystem dies as nothing can live
- 5. As a result, the aquatic ecosystem dies as nothing can live
- 4. Dead plants are decomposed by bacteria, further depleting oxygen
- 3. Algae blooms, preventing sunlight reaching other plants and hence, oxygen depletes
- 2. Pollutants encourage the growth of algae and other plants
- 1. Nutrients from fertilisers are washed off into rivers
- Excessive richness of nutrients in a body of water which causes a dense
growth of plant life
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