Earth's Tectonic Processes and Layers

What causes the Earth's surface to move and shift very slowly over millions of years?

• Ocean currents

• Wind erosion

• Plate tectonics

• Volcanic eruptions

Which layer of the Earth consists of the crust and part of the upper mantle, and is responsible for the movement of tectonic plates?

• Asthenosphere

• Outer core

• Lithosphere

• Mesosphere

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Continental plates are primarily composed of which two elements?

• Silicon and Magnesium

• Iron and Nickel

• Silicon and Aluminum

• Oxygen and Hydrogen

Which type of plate boundary is characterized by two plates sliding past each other horizontally, often leading to earthquakes?

• Convergent boundary

• Divergent boundary

• Transform boundary

• Subduction boundary