38. One of these statements about the Moho is incorrect. Which one is it? (A) It is the boundary between the crust and mantle. (B) It exists beneath oceans, but not beneath continents. (C) Seismic P waves travel faster through mantle beneath the Moho than in crust above it. (D) Beneath oceans, the Moho is the boundary between mafic oceanic crust and ultramafic mantle rock. 39. An explosion in Nevada creates P, S, and L waves. Which wave arrives in Austin first? (A) P wave; (B) S wave; (C) L wave. (D) It depends on the properties of the crust between Nevada and Austin. 40. Which statement about seismic waves is correct? (A) P waves are called primary because they pack more energy than S-waves or surface waves (B) S waves travel through solids, liquids, and gases. (C) All seismic ray paths through the earth are straight lines. (D) Seismic energy that travels more steeply (deeper) into the mantle also re-emerges to the earth's surface farther from its originating earthquake. 41. Why can't S waves travel through the earth's outer core? (A) The outer core is liquid. (B) The core is too deep for S waves to reach it. (C) The outer core, being made of iron, is too dense for S waves to travel through it. (D) A shadow zone blocks S waves from reaching the core
38. One of these statements about the Moho is incorrect. Which one is it? (A) It is the boundary between the crust and mantle. (B) It exists beneath oceans, but not beneath continents. (C) Seismic P waves travel faster through mantle beneath the Moho than in crust above it. (D) Beneath oceans, the Moho is the boundary between mafic oceanic crust and ultramafic mantle rock. 39. An explosion in Nevada creates P, S, and L waves. Which wave arrives in Austin first? (A) P wave; (B) S wave; (C) L wave. (D) It depends on the properties of the crust between Nevada and Austin. 40. Which statement about seismic waves is correct? (A) P waves are called primary because they pack more energy than S-waves or surface waves (B) S waves travel through solids, liquids, and gases. (C) All seismic ray paths through the earth are straight lines. (D) Seismic energy that travels more steeply (deeper) into the mantle also re-emerges to the earth's surface farther from its originating earthquake. 41. Why can't S waves travel through the earth's outer core? (A) The outer core is liquid. (B) The core is too deep for S waves to reach it. (C) The outer core, being made of iron, is too dense for S waves to travel through it. (D) A shadow zone blocks S waves from reaching the core
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
Related questions
Question
Transcribed Image Text:38. One of these statements about the Moho is incorrect. Which one is it?
(A) It is the boundary between the crust and mantle.
(B) It exists beneath oceans, but not beneath continents.
(C) Seismic P waves travel faster through mantle beneath the Moho than in crust above it.
(D) Beneath oceans, the Moho is the boundary between mafic oceanic crust and ultramafic
mantle rock.
39. An explosion in Nevada creates P, S, and L waves. Which wave arrives in Austin first?
(A) P wave; (B) S wave; (C) L wave.
(D) It depends on the properties of the crust between Nevada and Austin.
40. Which statement about seismic waves is correct?
(A) P waves are called primary because they pack more energy than S-waves or surface waves
(B) S waves travel through solids, liquids, and gases.
(C) All seismic ray paths through the earth are straight lines.
(D) Seismic energy that travels more steeply (deeper) into the mantle also re-emerges to the
earth's surface farther from its originating earthquake.
41. Why can't S waves travel through the earth's outer core?
(A) The outer core is liquid.
(B) The core is too deep for S waves to reach it.
(C) The outer core, being made of iron, is too dense for S waves to travel through it.
(D) A shadow zone blocks S waves from reaching the core
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 1 images
Recommended textbooks for you
Applications and Investigations in Earth Science …
Earth Science
ISBN:
9780134746241
Author:
Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:
PEARSON
Exercises for Weather & Climate (9th Edition)
Earth Science
ISBN:
9780134041360
Author:
Greg Carbone
Publisher:
PEARSON
Environmental Science
Earth Science
ISBN:
9781260153125
Author:
William P Cunningham Prof., Mary Ann Cunningham Professor
Publisher:
McGraw-Hill Education
Applications and Investigations in Earth Science …
Earth Science
ISBN:
9780134746241
Author:
Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:
PEARSON
Exercises for Weather & Climate (9th Edition)
Earth Science
ISBN:
9780134041360
Author:
Greg Carbone
Publisher:
PEARSON
Environmental Science
Earth Science
ISBN:
9781260153125
Author:
William P Cunningham Prof., Mary Ann Cunningham Professor
Publisher:
McGraw-Hill Education
Earth Science (15th Edition)
Earth Science
ISBN:
9780134543536
Author:
Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:
PEARSON
Environmental Science (MindTap Course List)
Earth Science
ISBN:
9781337569613
Author:
G. Tyler Miller, Scott Spoolman
Publisher:
Cengage Learning
Physical Geology
Earth Science
ISBN:
9781259916823
Author:
Plummer, Charles C., CARLSON, Diane H., Hammersley, Lisa
Publisher:
Mcgraw-hill Education,