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Question

Which of the following measures in the 4R principle means to use resources less and only when necessary?
  1. Recover
  2. Recycle
  3. Reduce
  4. Reuse


Solution

The correct option is C Reduce

The 4R principle to save environment from pollution are:
Reduce - Minimal use of resources to reduce the  amount of waste produced from it
Reuse - Use the resources again instead of throwing them away after single use
Recycle - Most materials can be recycled into another form instead of dumping them after use  
Recover - Reclaiming the materials helps to process them and make use of them elsewhere

So, reduce is one of measures in 4R principle which indicated to use the resources less.

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