How salmon help keep a rainforest alive

Level: Upper-intermediate / B2

Vocabulary practice

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Another visit to the BBC's Power of Nature series. This video is called Salmon: Heart of the forest and it looks at how this fish helps the Great Bear Rainforest to survive.

Watch the video (four minutes long) and then answer the following questions:
1)  What does the forest do to the air and water?
2)  Which coast of Canada is the forest on?
3)  Why do the salmon swim up the rivers and creeks?
4)  Where do the bears eat the fish?
5)  How much of the nitrogen in the trees comes from the salmon?



Answers below!



ANSWERS!
1)  It cleanses the air; it stores and purifies water.
2)  The Pacific.
3)  To spawn (and then die).
4)  Deep in the forest.
5)  80%.