The important purpose of national parks and wildlife refuges is to protect landscapes and endangered species. Thus the option (C) is correct.
What is national park?
The national park is the area kept aside for the conservation and preservation of the ecosystem. It is protected by the national government.
It is important to preserve the national park and the wildlife from being depleted. It is need of an hour to protect the ecosystem for the survival of the human beings.
Thus the option (C) is correct.
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