Question

4. What is the powdery material found on old currency notes or old rubber or
paper ?​

Answer 1

Explanation:

The currency we use consists not only paper but also rags, wood pulp and in some cases even plastic , all these are mixed in a proportion approved by the RBI and only then is the paper made with all the security features incorporated within .

Answer 2

Answer:

Here is your answer which you need.

copperizerium.

Thank you