aquifer yield Books

  • GEMS Environment Library No. 15: Groundwater a Threatened Resource

    This publication is intended to explain to readers how important groundwater is, the extent of the threat to it, and the actions that can be taken to protect it.The world's water is one of our most precious resources. Lack of water is one of the principal causes of delayed development. Polluted water is one of the biggest killers we know, ...

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