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Subject :NSO    Class : Class 7

Which canned drink will remain cold the longest?


A P
B Q
C R
D Both P and Q


i think the answer is D because cotton also traps air and thus reduces the heat incoming or radiating.

Ans 1:

Class : Class 7
Bubble pack is a good insulator than a cotton wool.

Ans 2:

Class : Class 7
p

Ans 3:

Class : Class 8
q

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