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when a portion of the land sinks, a mountain is formed​

Sagot :

Answer:

When a portion of the land sinks and a mountain is formed, it usually involves tectonic processes. This process is related to tectonic plate movements. Here’s how it typically works:

1. **Tectonic Plate Movements:** Mountains are often formed at the boundaries of tectonic plates. When plates collide, one plate may be forced upwards, creating mountain ranges. Conversely, if a plate sinks into the mantle (subduction), it can create a different geological feature.

2. **Subduction Zones:** In some cases, an oceanic plate is forced beneath a continental plate, causing the continental crust to fold and rise, forming mountain ranges. The sinking of the oceanic plate creates a trench and can lead to volcanic activity.

3. **Rift Zones:** In rift zones where plates are pulling apart, the land between them can sink, creating valleys or basins. In some cases, the surrounding land may uplift, forming mountains or highlands around the rift.

4. **Volcanic Activity:** If the sinking of the land is due to volcanic activity, magma from beneath the Earth's surface can push through to create volcanic mountains

Explanation:

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