Temperature of water at the surface of lake is \[-{{20}^{o}}C.\]Then t – McqOptions

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1.	Temperature of water at the surface of lake is \[-{{20}^{o}}C.\]Then temperature of water just below the lower surface of ice layer is [RPET2000]
A.	\[-{{4}^{o}}C\]
B.	\[{{0}^{o}}C\]
C.	\[{{4}^{o}}C\]
D.	\[-{{20}^{o}}C\]
Answer» C. \[{{4}^{o}}C\]

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