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Question
On the basis of Fig, answer the following questions:
- What is the range of the altitude of Amazon river basin?
- Between which two highlands is the Amazon river basin located?
- Observe the region with the altitude 500 to 1000 metres. Describe the locational extent of this region shown in yellow with reference to direction.
- What do the isolated regions shown in yellow indicate?
- Besides the Amazon river basin, where else do you find regions with an altitude of less than 200m?
- Describe the plateau region with height of 200 to 500 m through which tributaries of Amazon flow in your own words.
Solution
- The range of altitude of the Amazon river basin is from 0 metres to 200 metres.
- The Amazon river basin is located between the Guyana Highlands and the Brazilian Highlands.
- The region in yellow represents the Brazilian Highlands. They cover most of the eastern and southern parts of Brazil.
- The isolated region shown in yellow indicate the Brazilian Highlands or the Brazilian Plateau or the Brazilian Shield.
- Besides the Amazon basin the other regions with an altitude of less than 200m are the Pampas, Parana and Paraguay basin, as well as the Eastern and Northen coastal region.
- The highlands here gradually slope towards north and slopes are not very steep. The tributaries of Amazon, eg. Xingu river flowing through this region make rapids and waterfalls.
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