Water is one of the basic necessities of life — no organism can survive in its absence. In recent years, however, it has become increasingly clear that our public water supply is not as pure as it should be and many are questioning its high chemical content. ‘Water scares’ are becoming all too frequent. Beaches, seas and oceans themselves are being increasingly contaminated. Plankton are beginning to die and the Earth is being deprived of one of its primary sources of oxygen. In t...
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язык английский ● Формат EPUB ● ISBN 9781780571034 ● издатель Mainstream Publishing ● опубликованный 2011 ● Загружаемые 6 раз ● валюта EUR ● Код товара 2418117 ● Защита от копирования Adobe DRM
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