Wetlands as Natural Filters and Water Purifiers

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Multiple Choice

What are wetlands?

  1. Areas of land that are covered in water for all or part of the year.
  2. Areas of land that are covered in snow for all or part of the year.
  3. Areas of land that are covered in ice for all or part of the year.
  4. Areas of land that are covered in vegetation for all or part of the year.
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