Water quality
Water is vital to life and although more than two-thirds of the planet is covered by it, both the quality & availability of this natural resource is critical. Water scarcity arises when the supply of fresh water is overused, polluted, or affected.
| Corporate Authors: | , |
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| Other Authors: | , , |
| Format: | Unknown |
| Language: | English Spanish |
| Published: |
Wynnewood, Pa. :
Schlessinger Media,
c2008.
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| Series: | Environmental science for students
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| Subjects: |