Answer in Brief
Give geographical reason:
The northeastern part of the Brazilian Highlands receives very less rainfall.
- Brazil receives rainfall from the South- East Trade winds as well as the North- East Trade winds.
- Some parts of the Highlands extend up to the northern coast.
- The escarpments act as an obstruction to the South-East trade winds coming from the sea. This causes orographic types of rainfall in the coastal areas.
- Beyond the highlands, as the effect of these winds gets reduced, the region receives less rainfall.
Due to all these reasons, the north-eastern part of Brazilian Highlands receives very less rainfall and is called as a rain shadow region or a ‘Drought Quadrilateral’.
Concept: Climate of Brazil
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