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Samyaraj Chowdhury from DPS Ruby Park, Kolkata, Kolkata
Subject :NSO    Class : Class 4
What is supernova ? A. volcano B. dying star C black hole D. superhero

Ans 1:

Syed Mohammad Hussain from ISAM, Muscat
Class : Class 8
b

Ans 2:

Syed Mohammad Hussain from ISAM, Muscat
Class : Class 8
b

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