0 is the process where materials separate into different layers due to density.

Question

0 is the process where materials separate into different layers due to density. 6) A) Shearing B) Differentiation C) Phase change D) Tensional stress Answer: B 7) What is the primary mcthod scienists use to determise the layering of the inscrior of the Earth? A) Drill cores B) Volcanic rocks C) Sonar D) Seismic waves 8) As of 2015, what was the deepest drill core yet taken that allowed scientists to study the Earth's interior? A) 7.6 km B) 12.3 km C) 15 km D) 50.3 km 9) An carthquake occurs in Califonia. What is the minimum magnitude an earthquake can have if it is to be picked up by seismographic networks around the world? A) M 5.5 B) M7 C)M8 D) M9.3 10) What will happen to a scismic wave when it is reflected? A) The wave will be bent. B) The wave will undulate. C) The wave will be bounced back toward its source D) Nothing will change the wave. 11) What will happen to a seismic wave when it is refracted? A) The wave will be bent wben passing into a material of differing density B) The wave will undulate C) The wave will be bounced back toward its source. D) Nothing will change the wave. 12) Which seismic wavels) would be most useful in determining the extent and thickness of the Earth's interior layers? A) P waves B) P and S waves C) S waves D) Surface waves 15 Copyright © 201 7 Pearson Education, Inc.

Explanation / Answer

7) Answer : D. Seismic waves. Explanation : By analyzing different waves of earthquake and their medium of travel, one can identify the layers of earth. 8) Answer : B. 12.3 km. Explanation : It was achieved in Russia and the location is known as kovai super deep borehole.

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