A Complete Collection of 100000 Whys
Fav十万个为什么
为什么山川会形成？
1、地壳运动：地球内部的热量和构造运动导致地壳板块相互碰撞或分离，形成山脉和山谷。
2、侵蚀作用：水流、冰川、风等自然力量不断侵蚀岩石，使山体逐渐被塑造，形成山谷和沟壑。
3、沉积作用：河流携带的泥沙在低洼处沉积，长期积累形成平原和盆地，与山脉形成对比。
4、火山活动：地壳中的熔岩喷发冷却后形成火山山脉，如夏威夷火山群。
5、重力作用：岩石在重力作用下发生崩塌和滑坡，进一步改变山川的形态。
总之，山川的形成是地球内部和外部多种自然力量长期作用的结果，包括地壳运动、侵蚀、沉积、火山活动和重力作用。
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