1) When people fly instead of using the train, their carbon ____________ is much bigger. a) footprint b) ethical 2) Many creatures such as sharks are under ___________ from too much fishing. a) threat b) captivity 3) Should animals be kept in ____________or be left in the wild? a) captivity b) awareness 4) Humans are ________________ for much of the ________________ of the world’s rainforests. a) responsible; destruction b) unethical; responsible 5) There’s not enough ______________of the damage we are doing to our local _________________ when we throw rubbish on the ground. a) awareness; ecosystem b) destruction; mammal 6) _____________________ in some cities don’t have running water or electricity a) Slums b) mammals 7) Using wild animals in circuses is _______________________ because it causes unnecessary anxiety. a) unethical b) under threat

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