有什么新的水形成,或者带到,地球?- 江南体育网页版- - - - -地球科学堆江南电子竞技平台栈交换 最近30从www.hoelymoley.com 2023 - 07 - 26 - t12:07:37z //www.hoelymoley.com/feeds/question/12801 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/12801 5 有什么新的水形成,或者带到,地球? user11318 //www.hoelymoley.com/users/0 2017 - 12 - 02 - t02:21:54z 2017 - 12 - 14 - t06:53:21z < p >我发现2来源说明地球上有新的水形成。< a href = " http://www.answers.com/Q/Where_does_new_water_on_earth_come_from " rel = " noreferrer " >第一网站< / >,它是来自海底热液喷口。< a href = " https://www.thenakedscientists.com/articles/questions/any-new-water-being-formed-our-planet " rel = " noreferrer " > < / >第二个网站基本上是说,新的水是通过生物过程产生的。然而,对我来说,这看起来水已经出现表面的热液喷口,水分子或原子的重排成通过生物过程,已经在地球上。也许这只是语义解释,但我还想知道新水来这里流星陨石。对我来说,将地球上的新水。有明确的证据或带到地球上新的水形成?< / p > //www.hoelymoley.com/questions/12801/-/12813 # 12813 5 userLTK回答的是否有新的水形成,或者带到地球? userLTK //www.hoelymoley.com/users/2717 2017 - 12 - 03 - t03:47:52z 2017 - 12 - 03 - t03:47:52z < p >你的解释(s)听起来正确的。< / p >

Your first article says as much.

There is a water cycle on earth that takes wet sediments deep into the mantle to be re heated and circulated back up as new sea floor. This is where the water in hydrothermal vents originates - it is NOT new water. However, there remains a possibility that some of the water emerging from the mantle has been there since the formation of the earth so some of it MAY be 'new'.

And your 2nd article

This is at least partly semantics calling it "new" water. When we burn gasoline for example, the hydrocarbon structure becomes Water and CO2 - is that new water, or just re-arranging molecules by chemical reaction and fire?

I'm also wondering if new water is coming here from meteors/meteorites.

Water absolutely reaches the Earth by comets and meteors. We're hit by comets and meteors all the time and comets especially are water-rich. That is new water, though I wouldn't want to put an estimate on how much. Too big a margin of error.

Earth also loses water by UV rays from the sun. Most of the atmosphere the Earth loses is Hydrogen and most of that Hydrogen comes from Water. Losing 90 tonnes of Hydrogen per day works out to nearly 800 tons of water per day, which sounds like a lot, but compared to the vastness of our oceans, it's a proverbial drop in the bucket, even over hundreds of millions of years.

So Earth adds water by comets and Earth loses water by photo-disintigration and atmospheric escape. I've read that it's a net loss, not a net gain, but it's pretty insignificant either way. Some articles suggest Earth has lost a pretty good share of it's water over billions of years. I think there's a pretty big margin of error in those estimates, personally.

In 200 or 300 million years, as the sun grows a little larger and brighter, we might need to begin to worry about Earth losing too much water (maybe). That's if we're still around, of-course.

//www.hoelymoley.com/questions/12801/-/12847 # 12847 0 Joser_V回答的是否有新的水形成,或者带到地球? Joser_V //www.hoelymoley.com/users/11751 2017 - 12 - 06 - t16:47:23z 2017 - 12 - 06 - t16:47:23z < p >是的,过醋和小苏打的反应,这种反应会产生少量水连同产品。其中一个产品是醋酸钠(NaC2H3O2)。其他产品有水(H2O)和二氧化碳(CO2)。< / p > //www.hoelymoley.com/questions/12801/-/12898 # 12898 2 奈尔的回答有任何新的水形成,或者带到地球? 奈尔 //www.hoelymoley.com/users/11793 2017 - 12 - 14 - t06:37:08z 2017 - 12 - 14 - t06:53:21z < p >新水引入场景,除了通过< a href = " https://www.thenakedscientists.com/articles/questions/any-new-water-being-formed-our-planet " rel = " nofollow noreferrer " >生物过程< / >中提到这个问题:< / p > < ol > <李>当冰(2 H <子> < /订阅> O)陨石或小行星进入地球大气层他们融化成水李< / > <李>当陨石含氧化合物与氢反应在高层大气中,并创建水李< / > <李>如果陨石含有氢化合物与低层大气中的氧气反应,并创建水(不太可能)< /李> <李>如果地球穿过彗星的小径或包含氢气或氧气的星云,它与地球的氢/氧反应产生的水(不太可能)< /李> <李>如果地球穿过彗星的小径或星云包含冰(2 H <子> < /订阅> O)[可能]< /李> <李>如果上层大气的氢与低层大气中的氧气(不太可能)< /李> < / ol >
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