Which outcome occurs in an estuarine delta when freshwater stream flow diminishes significantly?

💡 Explanation

Increased saline intrusion into the delta occurs because decreased freshwater flow reduces hydraulic head that normally opposes saltwater intrusion; the mechanism called brackish water wedge migration causes inland progression. Therefore, saline water expands inland, rather than reversed sediment gradation at the coastline.

• Which outcome occurs when increased offshore wind stress induces coastal upwelling along continental margins?
• Which impact results when high soil moisture increases rates of animal-driven bioturbation around artificial embankments?
• Which process influences thermocline destabilization when increased freshwater runoff enters a subtropical gyre?
• Which consequence results when coastal mountain ranges force orographic lift?
• Which process causes increased stream meandering downstream in a humid, temperate region due to deforestation?
• Which outcome results from increased mantle dehydration during subduction?