生活中和我们关系密切的，还是那些地面上的水，和靠近地壳(qiào)的地下水，以及大气中的水。这些水互相迁移交换，在地面上下构成了一个包围全球的圈层，被称作水圈。 水圈不仅满足人类饮用的需求，而且对地球上的气候有极重要的影响。1立方米的水在温度降低1℃时，放出的热足以使3100多立方米的空气升温1℃；反过来，3100多立方米的空气降温1℃时，放出的热仅能 Closely related to us are those water on the ground, the groundwater near the crust, and the water in the atmosphere. The water migrates to and from each other and forms a circle that surrounds the whole world, called the hydrosphere. Hydrosphere not only meets the needs of human consumption, but also has a very important impact on the Earth's climate. 1 cubic meter of water in the temperature decreases 1 ℃, the heat released enough to make more than 3100 cubic meters of air temperature 1 ℃; conversely, more than 3100 cubic meters of air cooling 1 ℃, the release of heat only