Plate Tectonics

What is the theory of plate tectonics?

• The theory that explains the movement of the Earth's lithosphere, which is divided into tectonic plates that float on the semi-fluid asthenosphere.

• A hypothesis that suggests the Earth's surface is static and unchanging over time.

• The concept that the Earth's atmosphere is composed of multiple layers that affect weather patterns.

• A theory that describes the formation of mountains due to volcanic activity.

What is a fault?

• A type of rock formation

• A fracture in the Earth's crust along which movement has occurred.

• A geological feature formed by erosion

• A volcanic eruption site

What is the role of convection currents in plate tectonics?

• Convection currents in the mantle drive the movement of tectonic plates.

• Convection currents cause earthquakes and volcanic eruptions.

• Convection currents are responsible for the formation of mountains.

• Convection currents have no effect on tectonic plate movement.

Where do most earthquakes and volcanoes occur?

• In the center of tectonic plates.

• Along plate boundaries.

• In ocean trenches.

• At the poles of the Earth.

What causes volcanic activity?

• Volcanic activity occurs when a subducting plate causes hot mantle material to rise to the surface.

• Volcanic activity is caused by the cooling of magma beneath the Earth's surface.

• Volcanic activity happens when tectonic plates are perfectly aligned and stable.

• Volcanic activity is triggered by the presence of large bodies of water above magma chambers.

What is a tectonic plate?

• A large, rigid piece of the Earth's lithosphere that moves and interacts with other plates.

• A type of rock found in the Earth's crust.

• A layer of gas surrounding the Earth.

• A small fragment of the Earth's atmosphere.

What is a transform boundary?

• A tectonic plate boundary where two plates slide past each other horizontally.

• A tectonic plate boundary where two plates move away from each other.

• A tectonic plate boundary where two plates collide and form mountains.

• A tectonic plate boundary where one plate is forced under another.

What is the asthenosphere?

• The rigid outer layer of the Earth.

• The hot, gel-like zone within the mantle where convection takes place.

• The solid inner core of the Earth.

• The layer of the atmosphere where weather occurs.

What makes up the lithosphere?

• The lithosphere is made up of the continental crust, oceanic crust, and the upper mantle.

• The lithosphere consists of only the continental crust.

• The lithosphere is composed of the atmosphere and hydrosphere.

• The lithosphere includes only the oceanic crust and lower mantle.

What is a divergent boundary?

• A tectonic plate boundary where two plates move apart, often creating new crust as magma rises.

• A tectonic plate boundary where two plates collide, causing one plate to be forced under the other.

• A tectonic plate boundary where two plates slide past each other without significant vertical movement.

• A tectonic plate boundary that remains stationary while surrounding plates move.