Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • Following are a few organisms (a) lichen (b) mosses (c) mango tree (d) cactus Which among the above can grow on stones; and also help in formation of soil? Write the mode of their action for making soil.

 Following are a few organisms
(a) lichen (b) mosses (c) mango tree (d) cactus
Which among the above can grow on stones; and also help in formation of soil? Write the mode of their action for making soil.

Answers (1)

Answer: 

Organisms that can colonize bare rock are called pioneer species.  Lichens are usually the first pioneer species, and they look like colour splotches on the surface of rocks - white, green, grey, yellow or even orange.
Once lichens have been growing on rocks for a while, mosses are able to survive there too.  Mosses are plants that don't have flowers or stems or roots - just tiny green leaf-like structures and microscopic hair-like structures.  Mosses build habitat for small flowering plants; the flowering plants provide habitat and food for more creatures.  Flowering plants have roots that hold the soil in place, and they also add to the soil as they die back each winter and decompose. Their decay and decomposition lead to an increase in organic content of the soil which paves way for other forms of vegetation.

Posted by

infoexpert26

View full answer

Similar Questions

Latest Question