Eutrophication
Presentation
•
Science
•
6th - 8th Grade
•
Hard
James Gonzalez
FREE Resource
3 Slides • 3 Questions
1
Eutrophication
2
Multiple Choice
What happens in Eutrophication?
A massive die-off of organisms due to low oxygen.
An net increase in oxygen.
A changing of a land biome from fertilizer.
3
4
Multiple Choice
What is the original cause of eutrophication?
Too many predators
Too many herbivores
Excess fertilizer
Too much oxygen
5
6
Multiple Choice
Why does the increase of producer type organisms decrease the amount of oxygen?
Only producers on the bottom of the system make oxygen.
The bacteria and other decomposers use up the oxygen while they break down the dead algae
Producers don't make oxygen.
The fertilizers chemically react with oxygen in the water.
Eutrophication
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