Question

What does the 4R’s principle mean?
A) Reduce, reuse, recycle, and recover
B) Reduce, remove, recycle, and reduce
C) Reuse, remove, recover, and reduce
D) None

Answer 1

Hint: The 4R principle relates well with the environmental concern thereby dealing with the reduced use of non-environmental friendly substances.

Complete Answer:
The 4R principle is defined as follows –
1) Reduce – Every person on this planet should be encouraged towards reducing the use of resources as often as possible thereby saving those for future use.
2) Reuse – Wherever possible, the resources should be reused. It is not imperative to produce the resources on a large scale leading to their uncontrolled exploitation.
3) Recycle – Resources should be recycled wherever and whenever possible.
4) Restore – Restoring all the available natural resources should be frequently carried out as possible.

Option A: The principle of recovery does not justify the concept of a sustainable environment. Thus, this is the incorrect option.
Option B: One cannot remove any element from the environment completely. Thus, this is the incorrect option.
Option C: One can neither remove any element from the environment completely nor it can be recovered entirely. Thus, this is the incorrect option.
Option D: As none of the above options are correct, thus, this is the correct option.

Therefore, the correct option is d) None.

Note: Strict adherence to the 4R principle helps in achieving sustainable environmental goals. Sustainability means using resources while making sure there is enough left for the future generations.