Which of the following materials CANNOT be recycled?

The correct answer is wood.

Concept:

Segregation of Waste: Waste Can be segregated as

• Bio-Degradable Waste: 
  • Waste that can be decomposed by microorganisms. 
  • It includes organic waste, e.g. kitchen waste, vegetables, fruits, flowers, leaves, wood, and paper.​
• Non-Bio Degradable Waste:
  • ​Waste that cannot be decomposed by microorganisms.
  • It includes plastic, rubber, glass, electronic waste, etc. 

Explanation:

Non-Biodegradables can be disposed of by following the 3Rs: 

• Reduce: If the old objects (bags, water bottles, clothes) are in good condition, it's better to keep using them rather than buying new things. 
• Reuse: Jam or pickle jars or plastic bottles can be used again to store small objects like buttons. 
• Recycle: Paper, glass, some plastics, and metals can be recycled.

​ Wood is biodegradable, it can be made into compost but cannot be recycled. Additional Information

• Wood is the correct answer because it cannot be recycled in the same way as plastic, metal, or glass.
• Recycling means breaking a material down to make new products, and this process doesn't work well for wood.