3-2 Review

Assume that the diagram below shows a cross section of part of the lithosphere. Which diagram correctly shows what will happen to the lithosphere when pushed by tectonic forces?

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Enough pressure on the lithosphere will cause breaks to form. Which diagram shows a fault that was caused by forces that pulled the lithospheric plates apart?

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Which diagram best represents the crustal plate motion at the Mid-Atlantic Ridge?

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Which diagram shows a plate boundary that is typical for the formation of volcanoes?

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The strongest evidence exists for which two continents to have been connected when Pangaea was present?

• South America and Africa

• North America and Africa

• Africa and Australia

• South America and Australia

What topographic feature's formation is associated with the separation of North and South America from Europe and Africa?

• deep-sea trench

• continental mountain range

• mid-ocean ridge

• plateau

Examine the diagram of a volcano. Which letter indicates magma?

• A) W

• B) X

• C) Y

• D) Z

A paleontologist discovered many Lystrosaurus fossils in South America, Africa, India, and Antarctica. These fossils are found nowhere else on Earth. Based on the species anatomy and rock layer depth, the paleontologist concluded that the now-extinct Lystrosaurus species was a large land reptile that lived during the Mesozoic Era.

What can be inferred from this fossil evidence?

• Lystrosaurus eggs were probably transported by birds to different land areas in the Southern Hemisphere.

• Even though the Lystrosaurus was a land species, it was capable of swimming great distances across the open ocean.

• Millions of years ago, South America, Africa, India, and Antarctica were much further apart from each other than they are now.

• Millions of years ago, South America, Africa, India, and Antarctica were once joined together in a much larger landmass.

The image shows various stages in a water cycle. During which stage does water flow back towards the sea as runoff?

• W

• X

• Y

• Z

The diagrams show Boundary A, which represents the formation of a mountain range, and Boundary B, which represents sea floor spreading. How would each boundary be classified?

• A) Boundary A: convergent boundary; Boundary B: divergent boundary

• B) Boundary A: transform boundary; Boundary B: divergent boundary

• C) Boundary A: convergent boundary; Boundary B: transform boundary

• D) Boundary A: transform boundary; Boundary B: convergent boundary