本题目来源于试卷: Unity and Diversity A.1 Water，类别为 IB生物学
[单选题]
Which property of water enables fjzbw3sxmw +0( ;ww-j marine animals such as the ringed seald2pmd4 zs, rq h2xl;w;b 53 pp;y5rvlq (Pusa hispida) to stay afloat in water without expending 3rd4sd; ;qmwh p,bv p552p;lrx2zqyl large amounts of energy?
A. Thermal properties
B. Specific heat capacity
C. Viscosity
D. Buoyant force
参考答案: D
本题详细解析:
Choice D is correct becau;m/p8 787 qeijqn+vpx qpds;ese water has a relatively high density compared to many ;qse/; pi7qx8d jv+8peq 7 pmnsubstances which increases the buoyancy forces it exerts on objects submerged in it.
Choice B is incorrect because specific heat capacity refers to how much energy is required to raise the temperature of a unit of mass of a given substance by one degree Celsius. Choice C is incorrect because viscosity refers to the resistance of a fluid to an object moving through it or to flow of the fluid itself.
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