Which phenomenon accelerates dune migration during prolonged droughts?

💡 Explanation

Drought causes vegetation to decrease; this results in a reduced vegetative anchoring effect, increasing sand availability. Therefore, dune migration accelerates, rather than other processes like chemical weathering or bioturbation playing significant roles under low moisture conditions because vegetation plays a key role.

• Which outcome results from intense bioturbation activity within podzol soil horizons?
• Which outcome primarily occurs via wave refraction around a coastal headland featuring sea stacks?
• Which outcome affects cave ecosystems if excess agricultural fertilizer runs off into karst stream networks?
• Which landform results when slightly acidic groundwater drives landscape evolution?
• Which phenomenon accelerates sea stack disintegration when wave height increases?
• Which mechanism causes liquefaction during seismic shaking in saturated granular soils?