Waste Managment:

Question 1

What is water pollution?

Answer 1

• Caused by human activies, reduces biodiversity.
• Contains urine and faeces.
• Untreated sewage in rivers and streams.
• Fertilisers.
• toxic chemicals.
• ## Causes dissolved oxygen levels to fall + kill aquatic organisms.

Question 2

What is air pollution?

Answer 2

• • Caused by human activies, reduces biodiversity.
• Burning coal in power stations: Release acidic gases, cause acid rain.
• Releases smoke.

Question 3

What is land pollution?

Answer 3

• Caused by human activies, reduces biodiversity.
• Landfills- Destroys habitats of plants and animals.
• ## Toxic chemicals from landfills can pollute soil.