Which long-term consequence frequently results when constructed levees impede normal river flooding?

💡 Explanation

Riverbeds experience channel incision downstream of levees because sediment deposition is prevented; this increases flow velocity and therefore erosional power rather than causing deposition. This is a response to the constructed barrier.

• Which outcome results when pre-existing rocks undergo differential erosion by wind?
• Which localized outcome commonly occurs due to coastal upwelling?
• Which process reduces a lake's water level during stratification overturn?
• Which risk increases when rapid groundwater extraction lowers the water table within a soluble bedrock formation containing existing sinkholes?
• Which outcome occurs when increased Saharan dust deposition decreases solar radiation?
• Which outcome results in volcanic islands when pyroclastic density currents interact with seawater?