Water vapor is water in its gaseous state-instead of liquid or solid (ice). Water vapor is totally invisible. If you see a cloud, fog, or mist, these are all liquid water, not water vapor. Water vapor is extremely important to the weather and climate. Without it, there would be no...
Water vapor is water in its gaseous state-instead of liquid or solid (ice). Water vapor is totally invisible. If you see a cloud, fog, or mist, these are all liquid water, not water vapor. Water vapor is extremely important to the weather and climate. Without it, there would be no...
B. Air is just two or three kinds of gases. C. Air is a mixture of many different kinds of gases. D. Air is mainly water vapor.(2 ) Which of the following bar chart shows the main components (组成成分) of the air? A A. B.Argon Argon What is air?1%What is air?2%Oxygen ...
What does "it" of "since water-vapor becomes water when it cools" in Para. 3. refer to A.Water-vapor.B.Water.C.Cloud.D.Air. 相关知识点: 试题来源: 解析 D 要弄清楚该句中的指代关系,就必须正确理解文章第三段的内容――雨是如何形成的。云是由含有水蒸气的空气形成的。空气不断上升、...
Water vapor (水蒸气) and hydrogen (氢) are twoexamples but there are only very, very small amounts of them.C(1) What is air?A. Air is just one gas.B. Air is justtwo or three kinds of gases.C. Air is a mixture of many different kinds of gases. D. Air doesn't exist.A (2...
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Water can exist in three states: solid, liquid and gas. What is an example of water in a solid state? A. Water vapor. B. Ice. C. Rain. D. River water. 相关知识点: 试题来源: 解析 B。冰是水的固态形式;A 选项水蒸气是气态;C 选项雨是液态;D 选项河水是液态。
根据后面提到的water vapor,结合首字母,可知是high"高","go up high"为"上升",来自湖泊、海洋、河流的水滴以及来自地球的湿气都会上升到高空变成水蒸气。句意:来自湖泊、海洋、河流的水滴以及来自地球的湿气都会上升到高空。故填:high。(4)form.考查动词。根据前面提到的水蒸气冷却了,结合首字母,可知是form"形成...
Water vapor(水蒸气) and hydrogen(氢) are two examples, but there are only very, very small amounts of them. (1). What is the meaning of the underlined word "represent" in the third paragraph? A. 代表 B. 分解 C. 提取 D. 组成...
百度试题 结果1 题目What is the air temperature when the water vapor in the air begins to dew? A. Dry-bulb temperature B. Black globe temperature C. Wet bulb temperature D. Dew-point temperature 相关知识点: 试题来源: 解析 D 反馈 收藏 ...