板块运动
How Tectonic Plates Move
理解熔融地幔中的对流如何驱动刚性板块的运动；区分汇聚型（碰撞/俯冲）、离散型（扩张脊）和转换型（滑动）板块边界；解释为什么火山、地震和山脉链集中在板块边界；介绍超大陆聚合与裂解的威尔逊旋回。
Understand that convection currents in the molten mantle drive the movement of rigid tectonic plates; distinguish between convergent (collision/subduction), divergent (spreading ridges), and transform (sliding) plate boundaries; explain why volcanoes, earthquakes, and mountain chains cluster at boundaries; introduce the Wilson cycle of supercontinent assembly and breakup
评估问题 / Assessment
如果{{name}}看到一张显示火山和地震发生位置的世界地图，能否解释为什么这些事件遵循特定的环状分布，而不是随机出现在全球各地？
If {{name}} looks at a world map showing where volcanoes and earthquakes happen, can they explain why these events follow specific ring-shaped patterns rather than occurring randomly around the globe?