A) divergent plate boundary
B) transform plate boundary
C) ocean - continent convergent plate boundary
D) continent - continent convergent plate boundary
Correct Answer
verified
Multiple Choice
A) Wadati-Benioff zones
B) terranes
C) rift valleys
D) sea mounts
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) Someone else had already introduced his idea to the scientific community.
B) Many of his evidences did not support drifting continents.
C) Continents have not moved since Earth was created.
D) The evidence at the time seemed to suggest a solid mantle that did not allow drifting of continents to be possible.
Correct Answer
verified
Multiple Choice
A) erosion, isostatic uplift, and further erosion
B) volcanic eruptions
C) subduction of continental crust beneath oceanic crust
D) extension and contraction of asthenosphere
Correct Answer
verified
Multiple Choice
A) The layers of sediment reach 150 to 200 feet in thickness near mid-ocean ridges.
B) Ocean sediments are greater than 200 million years in age at mid-ocean ridges.
C) Ocean sediments are nearly absent near mid-ocean ridges.
D) The layers alternate between fine-grained sediments and lava beds near mid-ocean ridges.
Correct Answer
verified
Multiple Choice
A) transform fault
B) convergent zone
C) divergent zone
D) rift valley
Correct Answer
verified
Multiple Choice
A) periodic interruptions in mantle convection
B) subduction occurring in rift valleys
C) changes in Earth's axis of rotation
D) periodic reversals in the polarity of Earth's magnetic field
Correct Answer
verified
Multiple Choice
A) oxygen, uranium, and thorium
B) oxygen, silicon, and uranium
C) oxygen, silicon, and aluminum
D) iron, aluminum, and carbon
Correct Answer
verified
True/False
Correct Answer
verified
True/False
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verified
Multiple Choice
A) The depth of earthquakes would increase as you move from oceanic crust toward continental crust.
B) The depth of earthquakes could decrease as you move from oceanic crust toward continental crust.
C) Earthquake depths would remain constant as you move from oceanic crust to continental crust.
D) Only shallow earthquakes would occur along ocean - continent convergent boundaries.
Correct Answer
verified
Multiple Choice
A) subduction zones
B) ocean - ocean convergent boundar ies
C) divergent plate boundaries
D) ocean - continent convergent plate boundaries
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) 1 million years ago
B) 25 million years ago
C) 200 million years ago
D) 750 million years ago
Correct Answer
verified
Multiple Choice
A) weighing less than the water surrounding it
B) displacing a volume of water equal in weight to its own weight
C) having a lot of air within its body
D) displacing a volume of water which weighs slightly less than its own weight
Correct Answer
verified
Multiple Choice
A) in the deep ocean trenches
B) at convergent plate boundaries
C) at divergent plate boundaries
D) at the centers of tectonic plates
Correct Answer
verified
Essay
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verified
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Essay
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Essay
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