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When water vapor in the air cools down and changes back into liquid, it is called _. A. Evaporation B. Melting C. Condensation D. Freezing 相关知识点: 试题来源: 解析 C。解析:当空气中的水蒸气冷却变回液态时,这个过程被称为凝结(Condensation)。蒸发(Evaporation)是液态水变为气态水;融化(...
When water vapor cools down and changes back into liquid water, it is called ___. A. evaporation B. condensation C. precipitation D. sublimation 相关知识点: 试题来源: 解析 B。水蒸汽冷却变回液态水是冷凝过程。选项 A 蒸发与题干描述相反;选项 C 降水是指液态水从空中落下;选项 D 升华不符合...
When vapor cools down and changes back into liquid water, it is ___. A. condensation B. evaporation C. precipitation D. collection 相关知识点: 试题来源: 解析 A。选项 A“condensation”是凝结,水蒸气冷却变回液态水是凝结过程;选项 B“evaporation”是蒸发;选项 C“precipitation”是降水;选项 D“c...
Condensation is the process by which water vapor turns into liquid water. Where does condensation often occur? A. In the ocean B. In the deep soil C. On the cold surface D. In the warm air 相关知识点: 试题来源: 解析 C。解析:凝结是水汽变成液态水的过程。海洋主要是水体储存的地方,不是...
Water vapor in the air cools and changes back into liquid water. This is ___. A. evaporation B. condensation C. precipitation D. infiltration 相关知识点: 试题来源: 解析 B。解析:空气中的水汽冷却并变回液态水的过程是凝结(condensation)。蒸发(evaporation)是液态水变为气态水的过程。降水(precipita...
When water freezes, it turns into ___. A. steam B. ice C. water vapor D. liquid 相关知识点: 试题来源: 解析 B。本题考查水的状态变化。水冻结时会变成冰。选项 A“steam”是蒸汽,是水受热变成的;选项 C“water vapor”是水蒸气,也是水受热变成的气态;选项 D“liquid”是液体,水本身就是液...
The water turns ___ when it freezes. A. solid B. liquid C. gas D. vapor 相关知识点: 试题来源: 解析 A。turn 后面接形容词,表示“变成……”。水结冰时会变成固体,B 选项液体、C 选项气体、D 选项蒸汽都不符合水结冰后的状态变化。反馈...
At the ___, water vapor in the air will turn into liquid. A. freezing point B. dew point C. boiling point D. heating point 相关知识点: 试题来源: 解析 B。解析:dew point是露点,在露点时,空气中的水蒸气会变成液体。A选项freezing point是冰点,和水蒸气变成液体无关。C选项boiling point是...
In the process of cloud formation, the change from water vapor to liquid droplets is called ___. A. melting B. freezing C. condensation D. sublimation 相关知识点: 试题来源: 解析 C。解析:在云形成过程中,从水蒸气到液态小水滴的转变被称为凝结(condensation)。A选项“melting”(融化)是指固态...