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1. Mosses are some of the first organisms to colonise rocks 2. Mosses decompose rocks making the substrate suitable for the growth of higher plants. 3. Mosses form dense mats on the soil, they reduce the impact of falling rain and prevent soil erosion. Regarding 1,2 and 3:

( a ) 2 is incorrect; 1 and 3 are correct
( b ) 3 is incorrect; 1 and 2 are correct
( c ) 1 is incorrect; 2 and 3 are correct
( d ) All are correct
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(D) is the right answer.

Mosses along with lichens are the first organisms to colonise rocks and hence, are of great ecological importance. They decompose rocks making the substrate suitable for the growth of higher plants. Since mosses form dense mats on the soil, they reduce the impact of falling rain and prevent soil erosion.
answered Jan 6, 2014 by pady_1
 

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