Which outcome occurs when considerable tephra accumulates in drainage networks?

💡 Explanation

Tephra deposited in streams increases the risk of lahars, because saturation mobilizes the unstable material with limited binding cohesion resulting in mudflows; therefore, lahar formation is likely, rather than enhanced geothermal power or accelerated coastal erosion.

• Which topographic feature is primarily formed by the mechanism of solifluction in periglacial environments?
• Which mechanism causes surface water to sink in the North Atlantic region forming North Atlantic Deep Water?
• Which risk increases when coastal afforestation near mobile dunes is conducted without permeability planning?
• Which consequence results when extensive ashfall (tephra) buries grasslands?
• Which mechanism causes increased marine productivity when coastal upwelling occurs?
• Which outcome initiates glacial expansion when lava flows affect ice sheets?