Which outcome dominates when sand supply decreases substantially in dune fields?

💡 Explanation

Blowout formation dominates due to decreased sand supply; lowered sediment availability intensifies erosional processes like deflation because wind removes the limited sand available, therefore parabolic dunes form rather than expansion, which needs more sand.

• Which outcome occurs when basalt bedrock underlies tropical rainforest?
• Which erosional mechanism deepens cirques during glacial advance?
• Which mechanism promotes increased cirque erosion when differential bedrock strength exists?
• During cave stalactite formation, which process accelerates when water evaporates?
• In wetlands, which outcome from iron oxidation accelerating?
• Over-extraction from urban aquifers in karst increases which risk?