Оценка:
Опубликованно: 17.01.2004.
Язык: Английский
Уровень: Средняя школа
Литературный список: Нет
Ссылки: Не использованы
  • Эссе 'Water Scarcity in History, in Africa, and Possible Solutions to Water Scarcity', 1.
  • Эссе 'Water Scarcity in History, in Africa, and Possible Solutions to Water Scarcity', 2.
Фрагмент работы

Natural ecosystems require water for the survival of the plants and animals that live within them. These ecosystems help to regulate water quality and quantity of water. Wetlands hold water in periods of high rainfall, slowly releasing it during dryer periods, and purify it of heavy metals and other contaminants. Forests recharge our groundwater, which can be used elsewhere for drinking or irrigation. (Bergkamp 1) Natural ecosystems can help to prevent floods, provide shelter and millions of people are able to get their food, water, and fuel from these areas. …

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