Which feature predominates when dune migration encounters moisture gradient?

💡 Explanation

Parabolic dunes form because vegetation colonizes the humid areas, anchoring portions while dry zones erode via deflation; therefore arms trail windward, rather than the slip face advancing uniformly as in barchans affected by wind alone.

• Which prevailing wind effect results from the interaction of subtropical high-pressure zones and Earth's rotation?
• Which outcome occurs when viscous magma continually erupts, forming an unstable lava dome?
• Which risk escalates when a lava dome's exterior cools?
• Which outcome results from stress build-up along lithospheric transform plate boundaries?
• Which outcome occurs when wave approach angles repeatedly change along a beach with groynes?
• Which environmental outcome occurs when dust deflation impacts soil?