Earth/Space - Concept 3

Front

What is a rift valley?

Back

A rift valley is a lowland region formed by the divergence of tectonic plates, characterized by steep walls and a central block that has dropped down.

Front

What are highly-folded mountains?

Back

Highly-folded mountains are formed by the collision of tectonic plates, resulting in complex folding and faulting of the Earth's crust.

Front

What are volcanoes?

Back

Volcanoes are openings in the Earth's crust through which molten rock, ash, and gases are expelled, often forming a mountain or hill.

Front

What is a subduction zone?

Back

A subduction zone is a region where one tectonic plate moves under another, leading to geological activity such as earthquakes and volcanic eruptions.

Front

What is magnetic reversal?

Back

Magnetic reversal is the process by which the Earth's magnetic field changes direction, with the magnetic north and south poles switching places.

Front

What is paleomagnetism?

Back

Paleomagnetism is the study of the record of the Earth's magnetic field in rocks, sediment, or archeological materials.

Front

What type of fossil evidence supported Wegener's Continental Drift theory?

Back

Fossils of land-dwelling animals and land-plants provided evidence for the theory, indicating that continents were once connected.

Front

How does the age of oceanic crust near deep-sea trenches compare to that near ocean ridges?

Back

The oceanic crust near deep-sea trenches is older than the crust near ocean ridges, which is younger due to new material being formed.

Front

What geological feature is associated with a continental-continental plate boundary?

Back

A mountain range is typically formed at a continental-continental plate boundary due to the collision and uplift of landmasses.

Front

What is the significance of invertebrate shell fossils in geological studies?

Back

Invertebrate shell fossils help scientists understand past marine environments and the evolution of life in the oceans.