Which risk increases on a newly-formed volcanic island lacking vegetation?

💡 Explanation

Accelerated weathering occurs because little organic material buffers the newly exposed rock. Chemical weathering, rather than physical abrasion, becomes dominant; therefore, unstable volcanic minerals decompose at a high rate, unlike islands with pre-existing stable soils.

• Upriver sediment load decrease causes increased channel sinuosity, producing which feature?
• Which risk increases because of reduced flow velocity in an oxbow lake compared to the main river channel?
• Which mantle process maintains long-term subduction rates at convergent plate boundaries?
• Which risk strongly increases due to differential weathering when loess deposits overly bedrock?
• Which mechanism causes increased marine productivity when deep ocean water rises to the surface?
• Which mechanism determines the rate of sediment subduction along an accretionary wedge?