10 Questions
What is plate tectonics?
The theory that the earth's surface is broken into larger pieces of crust called plates
What is the upper part of the mantle known as?
Asthenosphere
How thick can continental plates be?
Up to 150 km
What did plate tectonics solve?
The mystery of drifting continents
In what century was plate tectonics proposed?
20th century
What is the main theory of plate movement?
The movement of the plates is primarily driven by the heat from the earth's core causing convection cells in the mantle
What is the mantle layer of the earth mainly composed of?
Oxygen, silicon, magnesium, and iron
What causes the movement of plates at converging boundaries?
Ridge push due to plates being higher at the spreading center
What is the role of gravity in plate movement at oceanic trenches?
Gravity pulls one plate under another plate and back into the mantle
What is the main source of heat that drives the convection cells in the mantle?
Heat from the radioactive decay of uranium and other elements in the core
Test your knowledge of plate tectonics and the earth's structure with this quiz. Explore topics such as the earth's crust, tectonic plate movement, and geological processes.
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