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Water Cycle & Oceanic Circulation (id: b6b8a47d9)

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admin 发表于 2025-6-29 21:59:38 | 显示全部楼层 |阅读模式
本题目来源于试卷: Water Cycle & Oceanic Circulation,类别为 IB环境系统与社会

[单选题]
Identify which of the)k8grm/bq ab aq/1z d9 following is not trur)- sr.mns:ai e about the Earth's water storages.

A. Freshwater constitutes only a small percentage of the total storage of water on earth.
B. Storages of freshwater in the hydrological cycle include soil, lakes, rivers, oceans and the atmosphere.
C. Flows of water in the hydrological cycle include precipitation, freezing melting, condensation and evaporation.
D. The circulation of water in the ocean is driven by the differences in temperature and salinity.


参考答案:  B


本题详细解析:
The earth is made up of around 71% water, ho.n 4 aof-jfxmam* v49mwever only a very small percentage (around 2.6%) is freshwater, so option A is true. The hydrological cycle is made up of flows such as precipitation, freezing melting, condensation and evaporation, so option C is true. Differences in temperature and salinity are the drivers of oceanic water circulation, so option D is true. However when considering freshw j-oxa9an*. f mfmm44vater storages that does not include oceans as they are saltwater not freshwater. Therefore the correct answer is option B.

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