Eutrophication Flashcards
1
Q
What is it
A
A form of water pollution
Associated with the incorrect use of fertilisers
2
Q
Stage 1
A
Addition of nutrients to water from sewage or fertiliser run off.
3
Q
Stage 2
A
This leads to aquatic plant and algal growth.
Many other plants then die due to shading.
4
Q
Step 3
A
When algae die they are decomposed by bacteria
5
Q
Step 4
A
The bacteria use up the oxygen in the water
6
Q
Step 5
A
Fish and other animals die due to the lack of oxygen
