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Hasini. N from chennai public school, thirumazhisai, Chennai

Subject :NSO Class : Class 4

Look at the given, figure carefully. What materials are used to make the parts labelled as R and S ?

(A) R-Glass; S-Plastic

(B) R-Glass; S-Rubber

(D) None of the above.

Ans 1:

Kavitharini Joseph from HUS, Chennai

Class : Class 6

b is the correct answer.