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Several river features are formed by rejuvenation. For example, as a river cuts down into its channel it will leave its old flood plain perched up on the valley side to form a river terrace. Meanders (bends in the river) become deeper and their sides steeper, forming incised meanders, and waterfalls and rapids become more common.
Orange symbolizes the Sahara Desert. The orange disc represents the sun. Green recalls the country's forests. White stands for the River Niger. Effective date: 23 November 1959.
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