PDF chapter test TRY NOW
Fill in the blanks with the correct option given below in the table:
(Note: Only on letter in each box)
| Decomposition | Oxalic acid | Microorganisms | Potassium |
| Soil | Wearing | Solute | Widening |
| Deforestation | Physical | Contraction | 45 |
| 25 | Humus | Biologically active | Humus |
1. Lichens growing on the rocks release certain chemicals such as ___________ that break down the rock and lead to soil formation.
2. Soil contains _______ percentage of water.
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