Answer:
Step-by-step explanation:
What do the lichens and mosses produce to break down rocks to begin the formation of soil?
In the chemical weathering, lichens secrete organic acids, specifically oxalic acid, which efficiently break down minerals and chelate the metallic cations (Chen et al. 2000) . In addition, lichens stimulate secondary mineral formation through turgor pressure and production of exopolysaccharide. ...