Unit 2: Who's At Risk?

Which of the following best describes the process of thermal convection in Earth's mantle?

• Heat is transferred from the core to the crust by conduction only.

• Heat is transferred through the movement of fluid in the mantle, causing the cycling of matter.

• Heat is transferred by radiation from the core to the surface.

• Heat is transferred by the movement of tectonic plates.

Tags

NGSS.HS-ESS2-3

How do seismic waves provide evidence for the structure of Earth's interior?

• They show that all layers of Earth are solid.

• They indicate that the outer core is liquid because S waves do not pass through it.

• They suggest that the mantle is liquid because P waves slow down in it.

• They prove that the crust is the densest layer.

Tags

NGSS.HS-ESS2-3

Which process is responsible for the formation of ocean-floor features at divergent boundaries?

• Subduction of oceanic plates

• Erosion by ocean currents

• Seafloor spreading due to magma rising

• Deposition of sediments

Tags

NGSS.HS-ESS2-1

Evaluate the evidence that supports the theory of plate tectonics based on the age of crustal rocks.

• Older rocks are found at the center of ocean basins.

• Younger rocks are found near mid-ocean ridges, indicating new crust formation.

• The age of rocks is uniform across all ocean floors.

• Continental rocks are younger than oceanic rocks.

Tags

NGSS.HS-ESS1-5

What is the primary factor that influences the movement of tectonic plates?

• Wind currents

• Ocean tides

• Convection currents in the mantle

• Solar radiation

Tags

NGSS.HS-ESS2-1

Which of the following statements best explains the role of radioactive decay in Earth's interior?

• It cools the Earth's core.

• It generates heat that contributes to mantle convection.

• It has no effect on Earth's temperature.

• It only affects the crust.

Tags

NGSS.HS-ESS2-3

What evidence supports the idea that the Earth's crust is broken into plates?

• Uniform distribution of earthquakes across the globe

• The presence of mountain ranges only in the ocean

• The alignment of earthquake and volcanic activity along plate boundaries

• The absence of geological activity at plate boundaries

Tags

NGSS.HS-ESS1-5

Where is the young crust found? where would the old crust be found?

b

a

Older Crust

Young Crust

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3