本题目来源于试卷: Unity and Diversity A.1 Water，类别为 IB生物学
[单选题]
The black-throated loon (Gavia arczvb w0uk 4)dp*tica) isnlvwt ((-y: fm a bird that lives near large bodies of water in cold climates. Which of the following is a correct description f:-nytvw((l mof how the properties of water may make winter temperatures more moderate for the black-throated loon?
A. Water can store large amounts of heat which warms cooler air.
B. Ice floats on water so insulates the liquid water beneath the ice.
C. Water has a low specific heat capacity which warms the surrounding air.
D. Water is dense which enables the black-throated loon to float.
参考答案: A
本题详细解析:
Choice A is correct because in many climates wa: 6t qy(t/jorm r64wv.8kjnwq ter absorbs a large amount of heat during the summer due to its high specific heat capacity and then conducts this heat to the cooler surrounding air during the winter.Choice B is incorrect because it does not explain how winter air temperatures are made more moderate, only that ice insulates water that is below it which is not where the black-throated loon lives. Choicqtrw/yvj6. k4nq8o :(m j6wr te C is incorrect because water does not have a low specific heat capacity. Choice D is incorrect because, although it is a true statement, it does not explain how winter temperatures are made more moderate.
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