Subducción

The video explains the process of plate tectonics, focusing on how a continental plate collides with an oceanic plate, causing the denser oceanic plate to subduct beneath the continental plate. This subduction leads to plate deformation and movement toward the mantle, forming significant geological features like ocean trenches, exemplified by the Mariana trench, the deepest in the world.

What typically happens when a continental plate meets an oceanic plate?

• Both plates remain at the same level.

• The oceanic plate sinks under the continental plate.

• The continental plate sinks under the oceanic plate.

• The oceanic plate rises above the continental plate.

What is the typical movement rate of a tectonic plate sliding towards the mantle?

• A couple of millimeters per year

• Several kilometers per year

• A couple of centimeters per year

• Several meters per year

Which of the following is an example of a large ocean trench formed by plate subduction?

• The Mid-Atlantic Ridge

• The Great Barrier Reef

• The Mariana Trench

• The Andes Trench

What is the primary cause of the formation of ocean trenches?

• Earthquake activity

• Volcanic activity

• Subduction of one tectonic plate under another

• Erosion by ocean currents

Which trench is known as the deepest ocean trench in the world?

• The Java Trench

• The Tonga Trench

• The Puerto Rico Trench

• The Mariana Trench