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Questions and Answers
What is the primary process by which new crust is formed at mid-ocean ridges?
What is the primary process by which new crust is formed at mid-ocean ridges?
What did J. Tuzo Wilson introduce in 1965 regarding the movement of Earth's crust?
What did J. Tuzo Wilson introduce in 1965 regarding the movement of Earth's crust?
Which of the following best explains how continents can move apart?
Which of the following best explains how continents can move apart?
Where is intense volcanic and earthquake activity primarily concentrated?
Where is intense volcanic and earthquake activity primarily concentrated?
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What do contemporary deformations in Earth's crust primarily correspond to?
What do contemporary deformations in Earth's crust primarily correspond to?
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What geological evidence suggests that South America and Africa were once joined?
What geological evidence suggests that South America and Africa were once joined?
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What was the primary reason for rejecting Wegener's hypothesis about continental drift?
What was the primary reason for rejecting Wegener's hypothesis about continental drift?
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Who proposed the idea of convection currents affecting continental drift?
Who proposed the idea of convection currents affecting continental drift?
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What characterizes divergent plate boundaries?
What characterizes divergent plate boundaries?
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What key discovery did Maurice Ewing contribute to the understanding of seafloor spreading?
What key discovery did Maurice Ewing contribute to the understanding of seafloor spreading?
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Which plate is considered the largest tectonic plate?
Which plate is considered the largest tectonic plate?
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What feature was mapped along the Mid-Atlantic Ridge that supports the theory of seafloor spreading?
What feature was mapped along the Mid-Atlantic Ridge that supports the theory of seafloor spreading?
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What occurs at convergent plate boundaries?
What occurs at convergent plate boundaries?
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How did initial perceptions of Marie Tharp's contributions to seafloor mapping reflect gender biases?
How did initial perceptions of Marie Tharp's contributions to seafloor mapping reflect gender biases?
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What type of features can be observed at plate boundaries?
What type of features can be observed at plate boundaries?
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What evidence was essential in convincing skeptics of seafloor spreading after World War II?
What evidence was essential in convincing skeptics of seafloor spreading after World War II?
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How many major tectonic plates are recognized?
How many major tectonic plates are recognized?
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What was the effect of convection currents in Holmes' proposal on geological structures?
What was the effect of convection currents in Holmes' proposal on geological structures?
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What happens at transform faults?
What happens at transform faults?
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Which plate is an example of a smaller tectonic plate?
Which plate is an example of a smaller tectonic plate?
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What is a notable characteristic of the lithosphere in plate tectonics?
What is a notable characteristic of the lithosphere in plate tectonics?
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What was the primary contribution of Alfred Wegener to the field of geology?
What was the primary contribution of Alfred Wegener to the field of geology?
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What evidence supported the concept of continental drift?
What evidence supported the concept of continental drift?
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Which hypothesis suggested that today's southern continents were once a single mass?
Which hypothesis suggested that today's southern continents were once a single mass?
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Why did many scientists initially reject Wegener's ideas?
Why did many scientists initially reject Wegener's ideas?
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Which of the following concepts drew parallels with the emergence of plate tectonics?
Which of the following concepts drew parallels with the emergence of plate tectonics?
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What shift in geological thought occurred in the 1960s?
What shift in geological thought occurred in the 1960s?
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Which geological evidence was NOT used to support Wegener's theory?
Which geological evidence was NOT used to support Wegener's theory?
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The term 'Pangaea' refers to what?
The term 'Pangaea' refers to what?
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