1) reason (s) of extinction in recent ages is (are) a) destroying natural habitat b) overhunting c) environmental pollution d) all of them 2) from the extinct species a) dinosaur b) mammouth c) dodo bird d) quagga e) all of them 3) from the endangered species a) dodo bird b) panda bear c) dinosaur d) quagga

extinction

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恢復自動保存: ?