本书共分为六章,主要内容包括:沙尘暴的漫谈、沙尘暴的分类与特征、沙尘暴的形成、沙尘暴的地理分布、荒漠化与沙尘暴、荒漠的漫谈、沙漠的种类、我国沙漠地区的地质地貌特征、我国沙漠地区土壤条件等。
全球累積銷售兩千萬冊, 翻譯成十七國語言, 逾五十年來, 啟迪全球五大洲上億地球人的環保意識。 《寂靜的春天》是跨世紀的警示環保書寫, ...
This program presents science concepts in areas of biology, earth science, chemistry, and physical science in a logical, easy-to-follow design that challenges without overwhelming. This flexible program consists of 12...
_帆_的《基于生_文明_角的人口城市化_程研究》意在生_文明思想指_下_人口城市化_程_行理_研究,并分析中_人口城市化_程的演_、特征、影_等__。本__容_人口城市化理__行拓展,提出了人口城市化_程具有特定的_构,_深入理解__中的人口城市化提供_全面_角的理_支_,具有一定理_价值。
本书中,凡是青少年感兴趣的一切自然和社会奥秘几乎无所不有,无所不容。真正做到了庞而不杂,广而不糙。
历史上,我国曾将玉门关、阳关以西,葱岭(今帕米尔高原)以东,巴尔喀什湖东、南以及新疆的广大地区称之为西域。西域远离海岸线,气候干燥,到处是一望无际的沙漠和戈壁。正因为如此,当人们一旦提到西域的时候就会想到漫天的黄沙与呼啸的寒风。
The Biomes of the World series is an introduction to the ecosystems, or ecological communities, that make up the Earth. Each book in this eight-volume series presents clear, scientific information...
Animals. American History. Earth Science. Geography. Health. Space. True Books covers all this and more in photo-filled chapter books that provide a basic introduction to curriculum-relevant topics. Ideal for today's...
本书共分为七章,主要内容包括:土地从哪里来?了解土地的分布、矛盾的土地现状、你知道土地特征吗?土地与我们息息相关、上帝遗落的调色板、一丘黄土遍天下、紫色土与褐土、棕土与灰色森林土等。
A topical and practical introduction to life in a variety of environments around the world.The World Book Ecology series looks at the interaction of animals, plants, and people through beautiful...
Discover the mysterious, magnificent octopus!Follow a goggle-eyed octopus as she jets through the shadows, tentacles flying behind her. Finally she finds a well-hidden den in which to lay her eggs,...