Eutrophication

Eutrophication

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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.

Multiple Choice

What is the original cause of eutrophication?

• Too many predators

• Too many herbivores

• Excess fertilizer

• Too much oxygen

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.