解析 A。解析:“clouds are made of water vapor”是客观事实,宾语从句陈述客观事实用“that”引导。选项B“if”表示“是否”,不适合陈述这种客观事实;选项C“what”在从句中要充当成分,这里不需要;选项D“how”表示方式等,这里不是关于方式的内容。反馈 收藏 ...
Our ability to monitor broad atmospheric vapor rivers by satellite has been a vital development that has allowed scientists to observe how water links between regions. As a result, special interest is now paid to the way these flows move upward, condensing the vapor into precipitation and flood ...
In this Science 101 video, scientists Debolina Dasgupta and Nancy Kariuki describe the science, technology, and applications of hydrogen energy. Hydrogen is the simplest chemical element, or type ofatom, and an abundance of hydrogen exists within the water on our planet. It is naturally renewed ...
What Is the Water Cycle?on the NASA Climate Kids website Water cycleon Wikipedia The Water Cycleon the NASA Precipitation Education website Author Recent Posts M. Özgür Nevres I am a software developer and a science enthusiast. I was graduated from the Istanbul Technical University (ITU), ...
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Because cool air can't hold as much water vapor as warm air, the cold air leaves behind condensation that's routed to a drain or pan for disposal. In a water generator, the goal isn't to cool the air to make interior rooms more comfortable. The goal is to reclaim that condensation,...
In cinnabar's natural mineral and pigmented form, it's not dangerous. However, when temperatures rise, it releases a mercury vapor which can be toxic if inhaled. "Mercury is toxic, but as long as the cinnabar isn't heated, the mercury is locked by the sulfur, making cinnabar low in tox...
Water Vapor and Temperature Air contains a certain amount of water vapor. The amount of water vapor any mass of air can contain depends on the temperature of that air: The warmer the air is, the more water it can hold. A low relative humidity means that the air is dry and could hold...
into a solid, without going through the liquid phase. In this sense, deposition is the opposite reaction of sublimation. Deposition usually occurs when the air touching the solid is cooler than the rest of the air. This is what happens when water vapor is transformed directly into ice as ...
To be clear, a drop in CO2 wouldn't directly cause the whole drop in temperature. The biggest impact comes from the most abundant greenhouse gas, water vapor, which condenses out due to the fact that colder air holds less water vapor; this is what tanks the greenhouse effect in the simu...