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Marine reserves are areas where no extraction and alteration of any living or nonliving resource is allowed.
Q6: In a deep,temperate zone lake,the limnetic zone
Q11: Most of the world's proven coal reserves
Q21: The _ is a collection of 155
Q52: Efforts to restore the world's forests should
Q64: The reintroduction of the gray wolf has
Q77: We can control invasive species by all
Q85: An emergency action plan to protect the
Q99: On the temperate-zone lake figure,choose the zone
Q103: The most serious water problem in the
Q137: An individual can support the concept of