Differentiate wind erosion and water erosion and cite indicators for each in the field.

• A. Wind erosion indicators include deflation basins and blowouts; Water erosion indicators include sheet, rill, and gully formation.
• B. Wind erosion indicators include puddles and mud; Water erosion indicators include dunes and ripples.
• C. Wind erosion is indicated by deep soil cracks; Water erosion is indicated by leaf litter accumulation.
• D. Wind erosion and water erosion share the same indicators.

Answer: (A)

Distinguishing wind erosion from water erosion in the field comes down to the surface features each process leaves. Wind erosion indicators are deflation basins or blowouts, depressions formed as fine soil is removed by wind, and dunes or surface ripples that show sediment has been transported and deposited by wind. Water erosion indicators reflect overland flow removing soil, with sheet erosion as a uniform thinning of the topsoil, rills as small channelized grooves, and gullies as larger, entrenched channels. Puddles and mud indicate moisture conditions rather than a specific erosion process, while dunes and ripples are formed by wind rather than water; deep soil cracks or leaf litter patterns don’t align with the typical erosion indicators described. Hence, the described indicators—deflation basins and blowouts for wind, and sheet, rill, and gully formation for water—best differentiate the two processes.