Plate Tectonics

Multiple Choice

Which of the following statements best describes the process shown in the 'Breakup of Pangaea' diagram?

• The continents have always been in their current positions.

• Pangaea broke apart gradually over millions of years, forming the continents we know today.

• All continents moved to the North Pole.

• The breakup of Pangaea happened suddenly in a single event.

Multiple Choice

Which types of evidence support the theory of continental drift?

• Fossil evidence and rock types

• Ancient climates and ocean currents

• Plate tectonics and volcanoes

• Earthquakes and tsunamis

Multiple Choice

Which continents show evidence of matching mountain ranges according to the diagrams?

• North America and South America

• North America and Europe

• Africa and Australia

• Asia and Antarctica

Fill in the Blanks

Glacier evidence for continental drift can be observed in the distribution of

across ancient landmasses.

Fill in the Blanks

According to the plate tectonics theory, the uppermost mantle and crust together form the

layer.

Multiple Select

Select all features that are associated with divergent plate boundaries.

• Oceanic ridges

• Rift valleys

• Mountain ranges

• Seafloor spreading

Multiple Choice

Which type of plate boundary is responsible for the formation of oceanic ridges and seafloor spreading?

• Divergent boundary

• Convergent boundary

• Transform fault boundary

• Subduction boundary

Multiple Choice

What is the sequence of geological events that leads from upwarping to the formation of an oceanic ridge at a spreading center?

• Upwarping → Rift valley → Linear sea → Oceanic ridge

• Rift valley → Upwarping → Oceanic ridge → Linear sea

• Linear sea → Upwarping → Rift valley → Oceanic ridge

• Upwarping → Linear sea → Rift valley → Oceanic ridge

Fill in the Blanks

The East African

Valley is an example of a continental rift.

Multiple Choice

Which type of plate boundary is responsible for the formation of continental volcanic arcs such as the Andes and Cascades?

• Oceanic-Continental Convergent Boundary

• Oceanic-Oceanic Convergent Boundary

• Continental-Continental Convergent Boundary

• Transform Boundary

Fill in the Blanks

Volcanic island arcs form as volcanoes emerge from the

at oceanic-oceanic convergent boundaries.

Multiple Select

Which of the following are features formed at oceanic-oceanic convergent boundaries?

• Volcanic island arcs

• Trenches

• Mountain ranges

• Mid-ocean ridges

Fill in the Blanks

When subducting plates contain continental material, two continents collide and produce new

ranges, such as the Himalayas.

Multiple Choice

Which geological feature was formed as a result of the collision between the Indian and Asian plates?

• The Andes Mountains

• The Himalayas

• The Rocky Mountains

• The Alps

Fill in the Blanks

At a transform fault boundary, plates grind past each other without destroying the

.

Multiple Choice

Which of the following statements about transform fault boundaries is correct?

• They destroy the lithosphere.

• They create new oceanic crust.

• Plates grind past each other without destroying the lithosphere.

• They form volcanic arcs.

Fill in the Blanks

The discovery of strips of alternating polarity across ocean ridges is strong evidence for

.

Multiple Choice

What is the name of the supercontinent that Alfred Wegener proposed began to break apart 200 million years ago to form the present landmasses?

• Laurasia

• Gondwana

• Pangaea

• Eurasia