Plate Tectonics Review

What are the three main types of plate boundaries?

• Convergent, divergent, and transform boundaries

• Oceanic, continental, and mid-ocean ridge boundaries

• Trench, rift, and fault boundaries

• Subduction, collision, and spreading boundaries

Explain the process of seafloor spreading and how it relates to plate boundaries.

• Seafloor spreading is caused by the gravitational pull of the moon

• Seafloor spreading is the process of new oceanic crust being formed through volcanic activity and then gradually moving away from the mid-ocean ridges. This process is related to plate boundaries as it occurs at divergent boundaries where tectonic plates move apart from each other.

• Seafloor spreading is a result of erosion and weathering

• Seafloor spreading occurs at convergent boundaries

What are some of the key pieces of evidence that support the theory of plate tectonics?

• Matching shapes of clouds, occurrence of rainbows, distribution of sand dunes

• Number of lakes in a region, types of birds found, location of rivers

• Color of the sky, occurrence of thunderstorms, types of trees in a forest

• Matching coastlines of continents, distribution of fossils and rock types, occurrence of earthquakes and volcanic activity along plate boundaries

How do scientists use paleomagnetism as evidence for plate tectonics?

• By studying the orientation of magnetic minerals in rocks to track the movement of tectonic plates over time.

• By studying the color of rocks to track the movement of tectonic plates over time.

• By analyzing the density of rocks to track the movement of tectonic plates over time.

• By measuring the temperature of rocks to track the movement of tectonic plates over time.

How does plate movement contribute to the occurrence of earthquakes?

• Plate movement causes the Earth's crust to become more stable

• Plate movement causes stress to build up along plate boundaries, which can result in the release of energy in the form of earthquakes.

• Plate movement creates a protective barrier against earthquakes

• Plate movement has no impact on the occurrence of earthquakes

Explain the relationship between subduction zones and earthquakes.

• The friction and pressure created by the movement of tectonic plates in subduction zones can cause earthquakes.

• Subduction zones only cause minor tremors, not earthquakes

• Earthquakes are caused by volcanic eruptions, not subduction zones

• Subduction zones have no relationship to earthquakes

How does volcanic activity relate to plate tectonics?

• Plate tectonics have no impact on volcanic activity

• Most volcanic eruptions occur at tectonic plate boundaries

• Volcanic eruptions are not related to plate tectonics

• Volcanic activity only occurs in the middle of tectonic plates

Describe the formation of volcanic island arcs and how they are related to plate boundaries.

• Volcanic island arcs are formed by the process of seafloor spreading at divergent boundaries

• Volcanic island arcs are related to plate boundaries through the process of subduction at convergent boundaries.

• Volcanic island arcs are formed by the collision of two oceanic plates

• Volcanic island arcs are formed by the movement of transform boundaries

What is the continental drift theory and who proposed it?

• Charles Darwin

• Marie Curie

• Isaac Newton

• Alfred Wegener

Explain the role of fossil evidence in supporting the continental drift theory.

• Fossil evidence proves that continents have never moved

• Fossil evidence has no relevance to the continental drift theory

• Fossil evidence shows that continents have always been in their current positions

• Fossil evidence helps show that continents were once connected and have since drifted apart.