Which outcome results when glacial meltwater encounters impermeable ground, depositing sediments?

💡 Explanation

Esker deposition occurs because subglacial streams deposit sediments as meltwater flow decreases on impermeable surfaces; therefore a sinuous ridge forms, rather than terminal moraines which form at the ice edge.

• Which risk increases when a coastal oil pipeline crosses a transform fault boundary?
• Which hillside outcome primarily occurs when freeze-thaw exceeds drainage?
• Which risk increases when glaciers recede and drain lakes?
• Which outcome occurs when intense tropical rainfall accelerates topsoil depletion?
• Which sand dune migration outcome arises because vegetation anchoring fails?
• Which outcome results along coastlines when inlets migrate on barrier islands?