🧪Geosphere Flashcards

Front

What drives the movement of tectonic plates on Earth?

Back

Mantle convection

Front

What mysterious force causes the swirling convection currents in the mantle that keep our planet's interior in motion?

Back

Differences in temperature and density.

Front

What process moves heat and material in Earth's mantle?

Back

Convection

Front

What is the main source of Earth's internal heat and how does it affect mantle convection?

Back

Radioactive decay of isotopes like uranium-238, thorium-232, and potassium-40; it generates heat that drives mantle convection and influences plate tectonics.

Front

Differences in density and temperature between Earth's layers and their impact on geological wonders.

Back

The inner core is the densest and hottest, creating mantle convection currents that drive plate tectonics.

Front

Which geological feature is LEAST likely to be associated with tectonic plate movements that create volcanoes? Options: Hotspot, Rift valley, Subduction zone, Transform boundary.

Back

Transform boundary

Front

What is the main difference between seismic P-waves and S-waves?

Back

P-waves travel faster than S-waves and can move through both solids and liquids, while S-waves are slower and only travel through solids.

Front

How does a seismograph help in determining an earthquake's location?

Back

By recording P-wave and S-wave arrival times at seismograph stations.

Front

Where are most of the world's volcanoes located?

Back

Convergent boundaries, divergent boundaries, and hot spots.

Front

Where would you find a deep-sea trench?

Back

Convergent boundary (oceanic-oceanic)