Chaitanya L K
from
SKCHEC, bangalore
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:
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Hritvi
from
Podar International School, Mumbai
Class : Class 7
Bubble pack is a good insulator than a cotton wool.