« previous next »

Author Question: Which kind of seismic wave is fastest moving? A) P waves B) S waves C) surface waves D) ... (Read 211 times)

ishan

  • Hero Member
  • *****
  • Posts: 546
on: Jul 14, 2018
Which kind of seismic wave is fastest moving?
 
  A) P waves
  B) S waves
  C) surface waves
  D) Seismic waves all travel at the same speed.

Question 2

Examine this map showing the age of the crust in Africa and South America, and the position of ancient mountain belts (areas where mountain ranges used to exist but have since been eroded down to their roots).
 
  This information was not available to Alfred Wegener. Would he find it consistent with the idea of continental drift, or would it prove his idea wrong? Explain.
 
  What will be an ideal response?


CourtneyCNorton

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: Yes, this map provides evidence in support of continental drift (or plate tectonics). The big pink chunks of Archean-aged rock very clearly run off the edge of one continent and pick up again on the other. Ditto for the mountain belts  these are like images on separate puzzle pieces that make more sense once the two pieces are snapped together.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

ishan

  • Hero Member
  • *****
  • Posts: 546
Reply #2 on: Jul 14, 2018
TY


CourtneyCNorton

  • Sr. Member
  • ****
  • Posts: 317
Reply #3 on: Jul 14, 2018
Happy to Help


« previous next »
 

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

The Venusian Surface The Venusian Surface
Layers are deposited parallel to Earth’s surface. Younger layers are deposited on top of older layer Layers are deposited parallel to Earth’s surface. Younger layers are deposited on top of older layer
Gray Matter Development over the Surface of the Cortex Gray Matter Development over the Surface of the Cortex
Extracorporeal shock-wave lithotripsy. Acoustic shock waves generated by the shock-wave generator ... Extracorporeal shock-wave lithotripsy. Acoustic shock waves generated by the shock-wave generator ...
A 2-fold serial dilution showing the result of moving 0.2 ml of green food coloring successively ... A 2-fold serial dilution showing the result of moving 0.2 ml of green food coloring successively ...
How to find the volume and surface area of any triangular prism How to find the volume and surface area of any triangular prism
Video: Nerve Impulse Transmission Animation

For a complete list of videos, visit our video library