A. It is believed to be in liquid form
B. Earth's magnetic field originates from it
C. It is about 2080 km thick
D. All of the above
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A. Asthonosphere
B. Rhenosphere
C. Lithosphere
D. None of the above
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A. Seisnometer
B. Seismograph
C. Seismonometer
D. Seismoscope
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A. It has seismic velocity of between 1.5 - 1.8 km/s
B. It is a non consolidated sediment
C. It is 0.3 to 0.8 km thick
D. It has seismic velocity of approximately zero when probed
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A. Liquids but not solid
B. Solids but not liquids
C. Both liquids and solids
D. Neither solids nor liquidss
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A. Ellipsoid
B. Geoid
C. Crust
D. Mantle
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A. reclamation
B. renovation
C. increasing efficiency
D. recycling
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A. Seismic velocities
B. Pressure
C. Density
D. None of the above
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A. super conductors
B. alkali metals
C. transition metals
D. Ferrites
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A. deep ocean trenches
B. ore bodies beneath earth's surface
C. large cavern systems beneath earth's surface
D. All of the above
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