What evidence suggests the Nile River was once fed by flowing streams from the present-day Sahara Desert? an absence of surface sand along the ancient stream courses modern river channels following the same course oxygenated layers of sediment in the Mediterranean Sea river deposits buried by sheets of sand and detected by satellite All of the answers are correct.
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What evidence suggests the Nile River was once fed by flowing streams from the present-day Sahara Desert? |
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an absence of surface sand along the ancient stream courses |
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modern river channels following the same course |
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oxygenated layers of sediment in the Mediterranean Sea |
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river deposits buried by sheets of sand and detected by satellite |
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All of the answers are correct. |
The ancient river channel buried under layers of sand in the Sahara Desert in Africa was revealed by the images taken by the Spaceborne Imaging Radar C/X-Band Synthetic Aperture Radar in 1994.
The discovery of this buried river channel suggests that possibly between 10,000 and 1 million years ago, the Nile river was forced to abandon its bed and take up a new course to the south due to tectonic activity.
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