A tribe can be defined as an aggregate of people linked together by means of social ties, a common language and the recognition of a common cultural heritage. Amerinds – The term is applied to the people of mixed European and American Indian blood in North America.
Temperature of a place depends primarily on the amount of insolation received. The important factors which affect the atmospheric temperature include:Cloud coverDistribution of land and SeaElevationAspect
According to Alfred Wegener, all the major continents formed one giant supercontinent, called Pangaea. About 200 million years ago, the supercontinent Pangaea began to rift.
The Isthmus of Kra is located in the Malay Peninsula. It lies between the Ranong and Chumphon provinces of Southern Thailand. It is bordered by the Gulf of Thailand in the east and the Andaman Sea in the west.
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