The word elliptical refers to an Oval.
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Teepees were made of buffalo hide fastened around very long wooden poles, designed in a cone shape. Tepees were warm in the winter and cool in the summer.
Although these structures were highly mobile, the design still provided a solid shelter for the American Indians. Teepees provided great mobility for hunting buffalo and elk, because they could be dismantled and reconstructed very quickly.
Answer:
Nepal water supply, sanitation and hygiene sector development plan. sanitation of Nepal also started to be used for water supply.
They grew things like tobocco, corn, maize and other crops... like wheat