Why is convection important to plate tectonics?
Convection currents occur in fluid, as a result of temperature changes. Warmer fluid rises and colder fluid falls. When an area of fluid is warmed, it rises, then cools at the top, falls and can be warmed again again, in a cyclic manner. This is a convection current.
Answer and Explanation:
Convection currents occur in the asthenosphere which is below the tectonic plates. By flowing, the asthenosphere pulls the tectonic plates and causes them to move. This movement is extremely slow but can result in many natural and geological phenomena, like volcanoes or earthquakes.
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Learn more about this topic:
from CLEP Natural Sciences: Study Guide & Test PrepChapter 11 / Lesson 8