Great Barrier Reef

Great Barrier Reef

This quiz focuses on the causes of environmental destruction on the GBR.

Question #1

What does unfiltered ballast water potentially contain that threatens the biodiversity of the GBR?

Question #2

What causes coral bleaching?

Question #3

The crown-of-thorns starfish is a predator of coral polyps. How many square metres of reef can one starfish devour in one year?

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