Question

What are the roles of living organisms in soil formation?

Answer 1

Roles of living organisms in soil formation are;

• Decompose organic matter to humus (bacteria and fungi)
• Fix nitrogen in the soil (Rhizobium bacteria)
• Provide nutrients in the soil when they die
• Their waste matter adds nutrients to the soil
• Their burrowing activities increase the breakdown of rock particles
• Plant roots breakdown rocks as they grow and expand.
• Larger animals break rock particles increasing the process of weathering.

Comments

really helpful information. Thanks