Q142
In cold weather, aquatic animals survive even when water at the top layer of the lake freezes into ice because
A.
They can breathe in ice
B.
They have enough of accumulated oxygen inside them
C.
Their body structure is such that they can survive without oxygen
D.
Water has the highest density at 4°C so underneath the top layer of ice there is a layer of water
AnswerAnswer: Option D
Solution
Answer: Option D
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