Which outcome occurs when repeated tephra layers accumulate?

💡 Explanation

Increased lahar hazard from repeated tephra deposition results because saturating tephra with water creates unstable conditions ripe for mudflows; therefore, lahars are more frequent rather than forming rock or lowering the geothermal gradient. This is due to saturation and gravity.

• Which outcome occurs when the hydraulic gradient rises significantly within a coastal aquifer?
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• Which effect arises from the deflection of prevailing winds by the Coriolis force?
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