EARTH SCIENCE
TECTONICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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precise measurements of the thickness of oceanic crust
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precise measurements of the relative motions of pieces of Earth’s lithosphere
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precise measurements of the relative motions of Earth’s inner and outer cores
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precise measurements of the thickness of continental crust
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Detailed explanation-1: -B. precise measurements of the thickness of oceanic crust .
Detailed explanation-2: -Evidence for Tectonic Plates Earthquakes, mountain building and volcanic activity occur mostly at the boundaries of the moving plates. Only shallow earthquakes occur where plates diverge at mid-ocean ridges, whereas earthquakes extend to great depth where plates converge at subduction zones.
Detailed explanation-3: -In fact, plate tectonics actually combine two other theories, continental drift and seafloor spreading into a comprehensive global theory. It’s curious that the continents on opposite sides of the Atlantic Ocean fit together so well, almost like a jigsaw puzzle.
Detailed explanation-4: -The theory of plate tectonics revolutionized the earth sciences by explaining how the movement of geologic plates causes mountain building, volcanoes, and earthquakes.
Detailed explanation-5: -Magma generation, igneous intrusions, metamorphism, volcanic action, earthquakes, faulting, and folding are usually the result of plate tectonic activity.