Question

Where do we use the process of recycling? How is it useful? Give examples.

SCERT Class 8 Telangana, Physical Science Chapter 3 Synthetic Fibres and Plastic

Answer 1

we can use the process of recycling in :-
*metals
*plastics 
* papers 
etc
 metals are processed from the interior of the earth through various time and money consuming process. So once it gets damaged, it quite impractical to leave them behind in bins for the reason that they arent useful. We can melt them again in factories and can me made in to new forms. Thus metals can be reused. 
plastic wont decompose in the soil. once it is thrown to the surface it will stay there for like many years and this can prevent the fertility and bio processes of the soil. This can be removed if we submit useless plastics to the factories where they are recycled. Now a days even the plastic is mixed with the tar while constructing the roads in order to increase the durability of the roads 
- paper is made from trees. If the news papers and used notebooks are left like that , we will have to cut more trees to make more amount of papers. This will pose a threat to the environment. So it is better to use the papers to bleach and reuse it