Identify the correct group : Algae, Roots and plants, Lichens, Block disintegration
Identify the correct group:
| A | B | C | D |
| (1) Algae | (1) Rock fall | (1) Relief and slope | (1) Shattering |
| (2) Roots and plants | (2) Landslide | (2) Gravity | (2) Block disintegration |
| (3) Lichens | (3) Earth flow | (3) Water | (3) Exfoliation |
| (4) Moss | (4) Exfoliation | (4) Vegetation | (4) Burrowing |
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