Geosphere Quiz

What is plate tectonics?

• Plate tectonics is the art of arranging plates on a table

• Plate tectonics is the process of making decorative plates

• Plate tectonics is the scientific theory that Earth's outer shell is divided into several plates that glide over the mantle, the rocky inner layer above the core.

• Plate tectonics is the study of dinnerware

Name the three types of plate boundaries.

• Subduction boundaries, parallel boundaries, and oblique boundaries

• Divergent boundaries, convergent boundaries, and transform boundaries

What is the Earth's lithosphere made of?

• Water and ice

• Iron and nickel

• Plants and animals

• Crust and upper mantle

Explain the process of seafloor spreading.

• Seafloor spreading is the process by which new oceanic crust is is formed through volcanic activity and then gradually moves away from the mid-ocean ridge, creating new seafloor.

• Seafloor spreading occurs when the ocean floor is pushed upward by tectonic forces, creating new landmasses.

• Seafloor spreading is the result of erosion wearing down the ocean floor, leading to the formation of new crust.

• Seafloor spreading is the process of the ocean floor sinking into the Earth's mantle, causing it to disappear over time.

What are the three main layers of the Earth's sphere?

• crust, inner core, and atmosphere

• surface, lithosphere, and inner core

• crust, mantle, and core

• atmosphere, lithosphere, and outer core

How does the inner core differ from the outer core?

• The inner core is made of iron, while the outer core is made of nickel.

• The inner core is located closer to the Earth's surface than the outer core.

• The inner core is hotter than the outer core.

• The inner core is solid, while the outer core is liquid.

What is the significance of the Earth's mantle?

• It is located on the Earth's surface

• It plays a crucial role in the movement of tectonic plates and the generation of volcanic activity.

• It is primarily composed of water and ice

• It has no impact on the Earth's geological processes

Describe the process of subduction.

• Subduction is the process of two tectonic plates moving away from each other at a divergent boundary.

• Subduction is the process of a tectonic plate sliding past another at a transform boundary.

• Subduction is the process of a tectonic plate rising above another at a convergent boundary.

• Subduction is the process where one tectonic plate is forced underneath another into the mantle at a convergent boundary.

How do convection currents in the mantle contribute to plate movement?

• Convection currents in the mantle only affect the temperature of the Earth's core, not plate movement

• Convection currents in the mantle are caused by plate movement, not the other way around

• Convection currents in the mantle have no impact on plate movement

• Convection currents in the mantle cause the movement of tectonic plates by transferring heat and creating a circular motion of magma.

What are the major tectonic plates?

• Atlantic Plate

• Arctic Plate

• Indian Plate

• Pacific Plate, North American Plate, Eurasian Plate, African Plate, Antarctic Plate, Indo-Australian Plate, and South American Plate