Discussion
Match List I with List II
| LIST I | LIST II |
|---|---|
| a. Movement of irrigation water from surface into and through the soil | I. Infiltration |
| b. Downward movement or entry of water into the soil surface | II. Seepage |
| c. The movement of water through a column of soil | III. Percolation |
| d. Downward and lateral movement of water into the soil | IV. Water intake |
Choose the correct answer from the options given below:
Answer: C
The correct match is a-IV, b-I, c-III, d-II.
- Movement of irrigation water from the surface into and through the soil is water intake, the term used for irrigated soils (IV).
- Downward entry of water into the soil surface is infiltration (I).
- Movement of water through a column of soil is percolation (III).
- Downward and lateral movement of water into the soil, as from canals and ponds, is seepage (II).
The common slip is to swap infiltration and percolation: infiltration is entry at the surface, percolation is movement down through the soil below it.
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