Geologic Timeline and Plate Tectonics

Front

What are the two spheres involved in ocean currents shaping the shoreline through waves and tides?

Back

Hydrosphere and Geosphere

Front

What process occurs at a seafloor spreading boundary?

Back

Seafloor spreading

Front

What type of plate boundary is associated with volcanic island arcs?

Back

Convergent oceanic-oceanic boundary

Front

What is the name of the belt where most of the active volcanoes on Earth are located?

Back

Ring of Fire

Front

What was the name of the supercontinent in the continental drift hypothesis?

Back

Pangaea

Front

What is the definition of plate tectonics?

Back

The theory explaining the movement of the Earth's lithosphere which is divided into tectonic plates.

Front

What is a divergent boundary?

Back

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

Front

What is a convergent boundary?

Back

A tectonic plate boundary where two plates move towards each other.

Front

What is subduction?

Back

The process where one tectonic plate moves under another and sinks into the mantle.

Front

What is the significance of the Ring of Fire?

Back

It is a major area in the basin of the Pacific Ocean where many earthquakes and volcanic eruptions occur.