Animals and plants are ____ all over the world. Throughout history living ____ have become extinct mainly because of climate ____. Nowadays animals and plants are under ____ because of pollution that is ____ oceans, rivers and forests. People are cutting ____ forests and draining swamps and wetlands for building new ____ to live in. A lot of trees are cut down or are ____ in forest fires. As a result, thousands of animals and plants are becoming endangered or even ____ because people have destroyed their natural habitat. The world around us has changed so much that many species of animals and plants cannot ____.

Ecological Conservation

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