Mohit
from
Carmel High school Gadchiroli , Gadchiroli
Subject :NSO Class : Class 8
in which metal sound can travel the fastest?
Ans 3:
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Ans 5:
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Aishwarya Dwivedi
from
St. John's School, Marhauli, Varanasi
Class : Class 9
Steel is an alloy....and he asked metal. I guess the answer is Aluminium.