Ekologi, biosfären
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The history of man's use of arid lands is a sad record of deterioration of the natural resource base and of low and declining living standards for the 300 million people who live …
Help your students uncover methods of sustainable development and explore the impact humans can have on complex ecosystems. This coursebook supports you and your class through the …
The first systematic account of the natural and semi-natural plant communities of the British Islands was published in 1911, under the title Types of British Vegetation. That book, …