• 2022-06-17
    The rainforests are home to one-third of the Earth’s plant and animal species.
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      中国大学MOOC: Rainforests _______ over one million species of wildlife.

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      _____ is the existence of a wide variety of plant and animal species living in their natural environment.

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      Every ten minutes, one kind of animal, plant or insect______ for ever. If nothing is done about it, one million species that are alive today will have become extinct twenty years from now.

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      9 Millions of years ago, changes in the Earth's climate caused animal and plant life to ( ). A: devise B: reverse C: diverse D: diversify

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      ___ places on the Earth where plant and animal life has not been affected by the activities ofhumans. A: The few B: Being few C: There are few D: Few