8. Pollution Flashcards
What are fertilisers?
Chemicals used to make plants grow better.
Who is responsible for water pollution?
We are! Humans.
Name some insoluble causes of water pollution.
Oil, plastic, tyre, tin, glass.
Name some soluble water pollutants.
Soaps, fertilisers, insecticides.
Where does lead contamination in our water come from?
Mining waste and paint.
What diseases can be caused from human waste contaminating drinking water?
Cholera and diarrhoea.
Define a wetland.
An area covered by shallow water for most of the year.
Name five ways in which wetlands are important to living things.
- Habitat for plants for animals
- Source of water for plants and animals
- Filter and clean water
- Store water and prevent flooding
- Keep rivers flowing in dry seasons
Why has there been a decrease in the number of wetlands?
Increased demand on land for housing, agriculture and industry.
Describe the term ‘biodiversity’.
All the different kinds of living things in n ecosystem.
Why do wetlands improve water quality?
Wetlands filter out pollutants and break down.
