复时间 2022-06-07 2025-04-12 Early Domestication and Agriculture     To some extent, the causes of agriculture are to be found in the thousands of years of hunting-ga...

  Periglacial Mounds   Periglacial regions are cold-climate areas that are located near the margins of glaciers-permanent ice sheets covering parts of the Arctic and ot...

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Early Food Production in Africa   Farming appeared in Africa by 5000 B.c.E. Eventually, several different styles of food production developed. These variations were caused by ...

TF阅读真题第858篇Late Classic Maya Agriculture

Mycorrhizae     Fungi are organisms, including mushrooms, yeasts, and molds, that absorb and decompose organic material. Most land plants have specialized roots that con...

Insect Colony Movement     In general, colonies of social insects such as bees or ants move either to change nesting sites when the current site deteriorates in quality,...

  Making the Most of Dark Nights       The main breeding station of the marine bird known as the swallow-tailed gull is the Galápagos Islands, which straddle...

 Greek Art in the Classical Age   Greek art is thought to have reached its peak during the Classical period in the fifth century B.C.E. Leading up to this period, the most co...

Britain's Industrialization     The Industrial Revolution was an extended period of economic growth and change brought about by the application of mineral energy and t...