The 'Reduce', 'Reuse' and '____' elements are the '3 R's' to save the environment.

The 'Reduce', 'Reuse' and '____' elements are the '3 R's' to save the environment.

The 'Reduce', 'Reuse' and '____' elements are the '3 R's' to save the environment.
  • Reverb
  • Repeat
  • Retreat
  • Recycle



ANSWER 
     (4)
  • Recycle