单词：sedimentary clays
沉淀粘土
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But even if there had been water, life doesn't start overnight. Even a simple microbe is the product of complex chemical systems that take millions of years to evolve. Had the water lasted long enough
发表于:2018-12-07 / 阅读(179) / 评论(0)
火星生命
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Some Volcanic Clays Kill Bacteria 一些火山灰能杀灭细菌 Ancient people knew that some kinds of clay have healing qualities. They rubbed clay on their skin to cover wounds. They also used the natural rock or soil material to treat stomach pro
发表于:2019-01-12 / 阅读(179) / 评论(0)
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