Q:
      
      
         
            
What is organic matter in soil is also called
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: B) humus         
         
Explanation: In soil, organic matter consists of plant and animal material that is in the process of decomposing. When it has fully decomposed it is called humus. Soil organic matter serves as a reservoir of nutrients for crops, provides soil aggregation, increases nutrient exchange, retains moisture, reduces compaction,... 
This humus is important for soil structure because it holds individual mineral particles together in clusters.
 
       
      
      
      
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