探索科学百科Discovery Education（中阶）4级D2膨胀的人口 - Tapa dura

The China Children popularization of science reading library explore science encyclopedia: expansion of the population (in the order of 4 D2)(Chinese Edition)

Hardcover. Condición: New. HardCover. Pub Date: 2012 Pages: 30 Language: Chinese in Publisher: Guangdong Education Publishing House is a large population explosion era. Earth has a population of more than 7 billion! In the top 16 mega-cities with a population of over 10 million. China's Shanghai and Beijing the list. Why the growth in population? What are the consequences of population expansion of children? Social and ecological environment. to withstand what kind of pressure? People will face what prospects? Earth's . Nº de ref. del artículo: CD033808

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