Tectonic Plates and Their Dynamics

The video explains plate tectonics, a process where the Earth's lithosphere is divided into tectonic plates that move over the asthenosphere. It covers the types of plates, their boundaries, and the geological phenomena they cause, such as earthquakes and volcanoes. The video also discusses the historical formation of continents and modern methods for tracking plate movements.

What is the primary cause of the Earth's surface moving slowly?

• Volcanic eruptions

• Plate tectonics

• Ocean currents

• Wind erosion

What layer of the Earth do tectonic plates sit on?

• The crust

• The core

• The asthenosphere

• The atmosphere

How many major tectonic plates are there on Earth?

• Twelve

• Ten

• Seven

• Five

What are oceanic plates primarily made of?

• Iron and nickel

• Silicon and magnesium

• Carbon and hydrogen

• Silicon and aluminum

Which type of boundary involves one plate sliding under another?

• Transform

• Parallel

• Convergent

• Divergent

What is a rift valley an example of?

• Divergent boundary

• Subduction zone

• Convergent boundary

• Transform boundary

Which boundary type is most likely to cause earthquakes?

• Divergent

• Subduction

• Transform

• Convergent

What is the term for the process where one tectonic plate is forced under another?

• Subduction

• Convection

• Rifting

• Transforming

What was the name of the supercontinent that existed over 250 million years ago?

• Pangaea

• Laurasia

• Atlantis

• Gondwana

What technology do scientists use to track the movement of tectonic plates today?

• Sonar

• GPS

• Radar

• Seismographs