Earth Interior
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The average density of the Earth as calculated by modern studies is closest to?
Options:
Option: D
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What was the average density of the Earth calculated by Poynting in 1878?
Options:
Option: D
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The core of the Earth, which lies deepest inside, has an estimated density close to?
Options:
Option: D
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Based on the average density of Earth, scientists can infer that?
Options:
Option: D
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What is the density range of the second rock layer beneath the sedimentary cover?
Options:
Option: C
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Why is the explanation of high density of the core only due to pressure considered wrong?
Options:
Option: B
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The unusually high temperature in continental crust is explained by?
Options:
Option: A
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What is the estimated temperature at the boundary of mantle and outer molten core at 2900 km depth?
Options:
Option: D
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At about 5150 km depth, what is the estimated temperature at the junction of outer molten and inner solid core?
Options:
Option: D
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According to deep borehole and mining studies, what is the average rate of geothermal gradient near surface?
Options:
Option: B
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Beyond what depth does it become very difficult to measure geothermal gradient accurately?
Options:
Option: B
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In tectonically active regions, the temperature at just 43 km depth can reach?
Options:
Option: C
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Which property of Earth provides the most reliable information about its internal structure?
Options:
Option: C
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What type of seismic wave is the fastest among all?
Options:
Option: A
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Which seismic wave cannot travel through liquids?
Options:
Option: B
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Seismic waves are studied under which branch of science?
Options:
Option: B
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What happens to the velocity of P waves when they enter the core?
Options:
Option: C
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The S wave shadow zone helps in proving the existence of which part of Earth?
Options:
Option: B
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The boundary between crust and mantle is called?
Options:
Option: D
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Which discontinuity separates the mantle and the core?
Options:
Option: B