几乎世界上的任何地方都可以找到黏土。它是由几千年来风和水作用在岩石上形成的。岩石由此产生了化学和物理变化。
Clay is found almost everywhere in the world. It is formed by the action of wind and water on rocks over thousands of years. The rocks change in both chemical and physical ways. Chemically, elements like potassium and aluminum are added and taken away. Physically, the rocks break down into smaller a…
几乎世界上的任何地方都可以找到黏土。它是由几千年来风和水作用在岩石上形成的。岩石由此产生了化学和物理变化。 从化学上来说,像钾和铝之类的化学物质被增加进去,然后带走。从物理上来说,岩石分解成更小的石块。经过很长一段时间后,有些石块就会变成黏土。 黏土是很重要的东西,因为全世界都用它来制造各种各样…