Which consequence results when deforestation occurs in an alluvial river basin?

💡 Explanation

Increased surface runoff results in catastrophic avulsions, because the increased sediment load overwhelms the existing channel; therefore, option A occurs, rather than delta formation or terrace changes, which would require sediment deposition.

• Which outcome occurs when the saturation index of the drip water source above a stalactite falls below equilibrium?
• Which outcome occurs when heavy pyroclastic flows enter lakes?
• Which consequence results when increased sediment load overwhelms channel capacity in a proglacial stream?
• Which phenomenon limits maximum magnitude of earthquakes along oceanic transform faults?
• Which risk increases significantly when heavy pyroclastic flows bury temperate forests?
• Which mechanism causes tsunamis after a megathrust earthquake?