EARTH: AN INTRODUCTION TO PHYSICAL GEOLOGY

Chapter 5: Volcanoes and Other Igneous Activity

Concept #2 Quiz

Choose the best possible answer to the following questions about Key Concept 2 "Materials associated with volcanic eruptions."

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1. Which are most commonly associated with lava flows?  

2. [Hint]

3.

Match the type of lava flow with the appropriate description.  

Using the pulldown boxes, match each item on the left to the corresponding item at right.

A. sticky flowing, and vesicle-rich basaltic flow
B. fluid flowing, fairly smooth, unfragmented and ropy surface
C. ash and dust – fine glassy fragments
D. sticky flowing, sharp-edged, angular blocks and rubble
E. “pea”-size pyroclastic particles
F. frothy lava
G. lava ejected into the air from the mouth of the volcano
 [Hint]
 [Hint]
 [Hint]
 

4. Which are most associated with explosive volcanic eruptions?  

5. Pyroclastic materials extruded from a volcano include all of the following except __________.  

Answer choices in this exercise are randomized and will appear in a different order each time the page is loaded.
 




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