Chapter 9 Plate Tectonics

According to Wegener's hypothesis of continental drift, what did the continents once form?

• The continents once formed a single landmass called Pangaea.

• The continents once formed multiple separate islands.

• The continents once formed a large ocean.

• The continents once formed a series of connected peninsulas.

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What is the name of the supercontinent mentioned in Wegener's hypothesis?

• Pangaea

• Gondwana

• Laurasia

• Atlantis

What evidence supports the theory of continental drift?

• Fossil records and geological formations

• Climate patterns and ocean currents

• Human migration and cultural similarities

• Astronomical observations and star patterns

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What was the main objection to Wegener's hypothesis?

• Lack of evidence for continental drift

• Inability to explain the mechanism of drift

• Contradiction with existing geological theories

• All of the above

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What is the longest feature on Earth's surface according to the section on sea-floor spreading?

• Mid-Atlantic Ridge

• Great Barrier Reef

• Andes Mountains

• Sahara Desert

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Paleomagnetism is the study of what?

• The magnetic properties of rocks and sediments

• The age of fossils

• The formation of mountains

• The behavior of ancient animals

In the theory of plate tectonics, Earth's lithospheric plates move slowly relative to each other, driven by ________ in the mantle.

• convection currents

• tidal forces

• solar winds

• magnetic fields

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Name the three types of plate boundaries.

• Convergent, Divergent, Transform

• Convergent, Divergent, Lateral

• Convergent, Lateral, Transform

• Divergent, Lateral, Transform

What occurs at divergent boundaries?

• Plates move towards each other

• Plates move away from each other

• Plates slide past each other

• Plates remain stationary

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At convergent boundaries, plates collide and interact, producing features including ________, volcanoes, and mountain ranges.

• trenches

• ridges

• faults

• basins

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