Earth's Geological Process

Which statement is supported by the Theory of Continental Drift?

• Continents move due to changes in the tilt of the Earth's axis.N

• Continents move due to changes in the Earth's orbit around the Sun.

• Present-day continents of South America and Africa are moving toward each other.

• Present-day continents of South America and Africa once fit together like a jigsaw puzzle.

Tags

NGSS.MS-ESS2-3

P waves can pass through the outer core, but S waves cannot. What does this suggest?uzzle.

• The outer core is solid in nature.

• The outer core is a molten liquid.

• S waves travel faster than P waves.

• P waves travel faster than S waves.

Which is the order of the Earth's interior from surface to center?

• crust, outer core, mantle, inner core

• crust, mantle, inner core, outer core

• inner core, outer core, mantle, crust

• crust, mantle, outer core, inner core

What causes the Earth's crustal plates to move?

• revolution of the Earth around the Sun

• convection currents in the Earth's mantle

• volcanism within the Earth's lithosphere

• the rotation of the Earth on its axis

Tags

NGSS.MS-ESS2-3

Which is true about the location of the asthenosphere?

• It is located just above the lithosphere.

• It is located in the lower part of the mantle.

• It is located in the upper part of the mantle.

• It is located in the inner core.

Which statement is true according to the theory of plate tectonics?

• Lithospheric plates are destroyed at the mid-ocean ridges.

• Continents drift because they rest on lithospheric plates that move.

• Lithospheric plates move because the inner core of the Earth is liquid.

• Transform boundaries form when two lithospheric plates collide.

Tags

NGSS.MS-ESS2-3

What is the primary cause for continental drift, earthquakes, and volcanic eruptions?

• heat from the Earth's core

• convection currents in the mantle

• rotation on the Earth's axis

• erosion of the Earth's crust

Tags

NGSS.MS-ESS2-3

Why do geologists drill through the oceanic crust in their attempt to reach the mantle?

• It is softer than the continental crust.

• It is thinner than the continental crust.

• It is younger than the continental crust.

• It is less dense than the continental crust.

What is the point on the Earth's surface that lies directly above the site where an earthquake occurred?

• epicenter

• focus

• fault line

• seismic wave

Which event usually causes tsunamis?

• typhoon or hurricane

• undersea earthquake

• volcanic eruption

• rotation of the Earth