Question

what useful things will we have to do without if rubber is no longer available​

Answer 1

Answer:

Eraser - To remove the markings made by a lead pencil,the only necessary thing is the eraser. Now,the erasers are totally made out of rubber and without the existence of rubber,we have to compromise the erasers.

Explanation:

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Answer 2

Answer:

Eraser - To remove the markings made by a lead pencil,the only necessary thing is the eraser. Now,the erasers are totally made out of rubber and without the existence of rubber,we have to compromise the erasers