In RUSLE, the A factor is expressed as what units?

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Multiple Choice

In RUSLE, the A factor is expressed as what units?

Explanation:
The A factor represents the average mass of soil lost per unit area each year. Because it’s a rate of soil erosion over time and per area, the units are mass per area per time. In U.S. customary units, that is tons per acre per year (and in metric units, Mg per hectare per year). The other options describe rainfall, volume, or nonstandard mass-per-area rates, which do not capture the annual soil loss per area that A quantifies.

The A factor represents the average mass of soil lost per unit area each year. Because it’s a rate of soil erosion over time and per area, the units are mass per area per time. In U.S. customary units, that is tons per acre per year (and in metric units, Mg per hectare per year). The other options describe rainfall, volume, or nonstandard mass-per-area rates, which do not capture the annual soil loss per area that A quantifies.

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