Which consequence manifests when excessive sedimentation overwhelms a levee's capacity?

💡 Explanation

Avulsion occurs when a levee's capacity to contain excess sediment has been reached; channel aggradation via **sediment deposition** raises the riverbed, because this elevates the water level promoting flow shifts, therefore avulsion will occur rather than continued flow containment.

• Which environmental change is indicated when desert ventifacts disappear?
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• Which mechanism causes crustal thickening when two continental plates collide at a convergent boundary with a thrust fault?
• Which outcome accelerates the development of sea caves when waves erode coastal cliffs?
• Which feedback results when volcanic tephra deposition increases albedo?
• Which outcome occurs when differential pressure increases within rhyolitic lava domes?