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Feb 17th, 2015
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Question description

1. Which observation supported Wegener’s theory of continental drift?  

Question 2.2. Which feature do you usually see when tectonic plates move apart? 

Question 3.3. What happens in a convection cell? 

Question 4.4. Which materials can P waves travel through? 

Which of the following types of volcanoes has steep sides with a broad, gently sloping base?  (Points : 3)


  composite-cone volcano

  cinder-cone volcano

  hot-spot volcano

Question 8.8. What type of material is released from a volcano? (Points : 3)



  pyroclastic material, lava, and gases

  pyroclastic material

Question 9.9. What term is used when describing characteristics of magma flow?  (Points : 3)



  silica content


Question 10.10. Which of the following may be associated with the collision of two sections of continental crust? (Points : 3)

  earthquakes and a mountain range 

  earthquakes, volcanoes, and trenches

  hot-spot volcanoes

  trenches and earthquakes

Question 11.11. The S-P interval of seismic waves recorded at a seismometer is 8 minutes. Approximately how far away is the earthquake’s epicenter from the seismometer? [equation: (S-P interval) = 0.00146 (distance to epicenter)]

  less than 1 km

  550 km

  5,500 km

  8 km

Question 12.12. Deposits of economic minerals might be associated with which of the following?

  two sections of continental crust moving together

  two tectonic plates moving past each other

  two tectonic plates moving apart

  an oceanic plate and a continental plate moving together

Which of the following features was not created by subduction? (Points : 3)

Question 20.20. The seismic waves of an earthquake are useful in determining which of the following? (Points : 3)

Question 21.

A seismograph station is located 2000 km from an earthquake’s epicenter. Explain the order that the S and P waves will arrive at the station. Using what you know about the characteristics of the different waves, explain your answer.

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(Top Tutor) Kate N
School: New York University

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