Why Continents Are High

The video explains the crucial role of water in Earth's geology, particularly in the formation of continental crust. It highlights how granite, a lightweight igneous rock, forms from magma due to tectonic activity beneath ocean trenches. This process involves water lowering the melting temperature of rocks, leading to the creation of low-density magma that forms granite mountains. Over time, these granite formations contribute to the assembly of continents, illustrating the dynamic nature of Earth's surface.

How do mountain chains of granite form according to the text?

What happens to the sea floor when it collides with another tectonic plate?