Question 1 — What are the sources of energy - Questions at the end of the chapter - Chapter 2 - Shaping of the Earth's Surface

Last updated at July 29, 2026 by

What are the sources of energy that are required to cause movements associated with the internal forces of the Earth?

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  • The main source is the intense heat deep inside the Earth.
  • This heat comes from the hot core and from the radioactive decay of elements in the mantle.
  • The heat sets up slow convection currents in the semi-molten mantle.
  • These currents drag the tectonic plates, causing earthquakes, volcanoes and mountain-building.
← Back to: 2.2 Plate Tectonics
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