Why are lichen and moss called soil farmers

When lichens and misses died off, they are usually replaced by bigger plants because they have made the place suitable for the growth of larger plants. The dead parts of lichen and misses decompose and turn into small particles of soil, this allow other plant species to grow in this location.

answer; /// i believe that the correct answer is ( monophasic ); ethinyl estradiol- ethynodiol diacetate is a monophasic oral contraceptive agent; ///

to this answer it would be edge enhancement