Question
What do you understand by $4R$ principle? Why should we remember this principle?
✓
Answer
The 4R principle is Reduce, Reuse, Recycle and Recover. This principle is environment friendly and would help reduce environmental pollution to an extent.
The principle directs people to:
$-$Reduce the usage of resources. Use them only if necessary.
$-$Reuse the resources $($or materials$)$ if possible. For example, reusing cloth bags for shopping.
$-$Recycle materials if they are no longer usable.
$-$Recover materials; converting waste into usable resources.
The principle directs people to:
$-$Reduce the usage of resources. Use them only if necessary.
$-$Reuse the resources $($or materials$)$ if possible. For example, reusing cloth bags for shopping.
$-$Recycle materials if they are no longer usable.
$-$Recover materials; converting waste into usable resources.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
What is meant by saying that force is due to an interaction'? Give an example to illustrate your answer.
Complete the word puzzle.
Down
$\quad$1. Species on the verge of extinction.
$\quad$2. A book carrying information about endangered species.
$\quad$5. Consequence of deforestation.
Across
$\quad$1. Species which have vanished.
$\quad$3. Species found only in a particular habitat.
$\quad$4. Variety of plants, animals and microorganisms found in an area.
→Down
$\quad$1. Species on the verge of extinction.
$\quad$2. A book carrying information about endangered species.
$\quad$5. Consequence of deforestation.
Across
$\quad$1. Species which have vanished.
$\quad$3. Species found only in a particular habitat.
$\quad$4. Variety of plants, animals and microorganisms found in an area.
What are the various types of plastics? Give two examples of each type of plastics.
Can we use electric current to make a magnet?
Why do we sometimes slip on smooth surfaces like ice or polished floors? Explain.
Why should paper be saved? Prepare a list of ways by which you can save paper.
What precautions would you take to protect yourself during an earthquake if you are inside the house?
How can you burn wood or coal using kerosene oil ?
Your uncle has started smoking just to fit in with his friends, even though it is well known that smoking can seriously harm health and even cause death.
1. What would you say to him to make him stop, without being rude?
2. What would you do if your friend offered you a cigarette at a party?
3. How can schools help prevent students from indulging in such harmful habits?
1. What would you say to him to make him stop, without being rude?
2. What would you do if your friend offered you a cigarette at a party?
3. How can schools help prevent students from indulging in such harmful habits?
How can we prevent the following diseases? Hepatitis A.