Question

Which of the following BEST explains why Earth is tectonically active?

Answer 1

Answer:C Earth's solid surface layer sits on a moving, semiliquid layer.

Explanation:

Earth is highly tectonically active because the solid layer of the earth sits on a moving, semi-liquid layer.

The earth's crust is broken into slabs. Together with part of the upper mantle, they form a layer called the lithosphere. These solid lithospheric bodies are called tectonic plates.