Deserts are diverse ecosystems that occur on all seven continents. Learn about the four major types of deserts, the surprising amount of ... ... <看更多>

Deserts of the world explores the various kinds of earths deserts. In this video we learn what a desert is, the different kinds of deserts ... ... <看更多>

荒漠甘泉Streams in the Desert. 2875 likes · 107 talking about this. 毎天送上一篇「荒漠甘泉」 ... <看更多>