Which material is commonly used in the NOR process?

Which material is commonly used in the NOR process?

• A. Wood chips
• B. Marble
• C. Glass beads
• D. Plastic pellets

Answer: (A)

In NOR, success hinges on providing a bulking medium that supports microbial decomposition by creating air pockets, absorbing excess moisture, and supplying carbon for the microbes. Wood chips fit this role well because their porous structure maintains airflow, helps regulate moisture, and offers a steady carbon source that fuels the natural breakdown process. In contrast, materials like marble, glass beads, or plastic pellets do not decompose or contribute to microbial activity, and they can disrupt airflow and moisture balance, hindering the NOR process.

In NOR, success hinges on providing a bulking medium that supports microbial decomposition by creating air pockets, absorbing excess moisture, and supplying carbon for the microbes. Wood chips fit this role well because their porous structure maintains airflow, helps regulate moisture, and offers a steady carbon source that fuels the natural breakdown process. In contrast, materials like marble, glass beads, or plastic pellets do not decompose or contribute to microbial activity, and they can disrupt airflow and moisture balance, hindering the NOR process.