The sediment yield ($D_r$) is determined as the proportion of sediment yield ($S_y$) to gross erosion ($E_g$), effectively representing the watershed's sediment delivery ratio.
Match the LIST-I with LIST-II
| LIST-I | LIST-II |
|---|---|
| A. Slip Erosion B. Erosivity C. Gully Erosion D. Wind Erosion | I. Ravines II. Landslides III. Saltation IV. EI30 index |
Choose the correct answer from the options given below: