7. After winter, Astha packed off her woollen clothes with naphthalene balls. With passage of
time, these naphthalene balls become smaller in size.
(a) What type of change is involed during this process?
(b) Why did Astha pack off her wollens with naphthalene balls?
(c) What values does Astha possess?
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Answer:
change in size take place
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