Quiz 13 (Earthquakes and Volcanoes)

1. Human populations in specific locations, locations where there is extensive tectonic activity, should take extensive precautions to minimize loss of: ___________________ and properties.

A) wealth
B) emeralds
C) diamonds
D) lives
E) money

2. There are _________ known continents.

A) 7
B) 6
C) 4
D) 8
E) 5

3. On Earth's surface, volcanoes and earthquakes seem to be __________________ __________________.

A) randomly scattered
B) randomly scattered on oceanic plates only
C) concentrated at the poles
D) concentrated in zones
E) randomly scattered on continental plates only

4. In relation to the continents, earthquakes and volcanoes are located ________________________________________.

A) mostly if not entirely along the edges of the Pacific plate
B) mostly if not entirely along the edges of continents
C) mostly if not entirely in the middle of a continent
D) mostly if not entirely in the north and south poles
E) mostly if not entirely in Alaska

5. The plate known to cause most of the tectonic activity on Earth is the ________________________ plate.

A) South-American Plate
B) Eurasian Plate
C) North-American Plate
D) African Plate
E) Pacific

6. Earthquake' epicenters can occur at _______ different depths.

A) 4
B) 3
C) 1
D) 2
E) 5

7. The depth of Earthquake epicenter depths can be _______________, _______________, and __________________.

A) supershallow, intermediary, dark
B) shallow, intermediate, deep
C) superficial, introductory, deep
D) shallow, intermediate, dark
E) shallow, introductory, deep

8. Older crust tends to be ________________, and therefore is denser than younger crust.

A) younger
B) higher
C) faster
D) hotter
E) cooler

9. Between the Tonga and the Peru-Chile trench, the ___________________ trench is known to have many ____________________-foci earthquakes.

A) Tonga, intermediate
B) Peru-Chile, deep
C) Tonga, shallow
D) Tonga, deep
E) Peru-Chile, shallow

10. Between the Tonga and the Peru-Chile trench, the ___________________ trench is known to have many ____________________-foci earthquakes.

A) Peru-Chile, Intermediate
B) Peru-Chile, shallow
C) Tonga-shallow
D) Peru-Chile, deep
E) Tonga-intermediate

11. "Shallow" earthquakes are shallow because the foci occur __________________________.

A) < 70 km below the surface
B) <70 km above the surface
C) > 70 km below the surface
D) > 300 km below the surface
E) > 70 km below the surface

12. "Intermediate" earthquakes are said to be "intermediate-foci" because the epicenters occur __________________________ below the surface.

A) 70 km - 150 km
B) > 300 km
C) 70 km - 300 km
D) 150 km - 300 km
E) 0 km - 70 km

13. "Deep" earthquakes are said to be "deep-foci" because the epicenters occur _________________________ below the surface.

A) 150 km - 300 km
B) > 300 km
C) 0 km - 70 km
D) 70 km - 150 km
E) 70 km - 300 km

14. A line of "best fit," or "best fit" line is a line that does not go through the points but shows...

A) a trend of lines
B) a trend of data
C) a trend of problems
D) a trend of patterns
E) a trend of solutions

15. Of the three known boundaries, the "East-Pacific" Ridge or Rise, is considered to be a _______________________ boundary.

A) convergent
B) deep
C) intermediate
D) divergent
E) transform

16. At the Tonga trench, the ___________________ plate is known to subduct, as pointed out by the Earth Science Reference Tables, page 5.

A) North-American
B) Philippine
C) Pacific
D) Indian-Australian
E) Fiji

17. The Mariana Trench was most likely created by the

A) sliding of the Pacific Plate past the North American Plate
B) movement of the Pacific Plate over the Hawaii Hot Spot
C) convergence of the Pacific and Philippine Plates
D) divergence of the Eurasian and Philippine Plates
E) divergence of the Pacific and Antarctic Plates

18. What does Mt. Pinatubo, Mt. St. Helen's, and Redoubt Volcano of Alaska have in common?

A) All three are on the Ring of Fire
B) All three are safe to visit
C) All three are mountains
D) All three are on the Mid-Atlantic Ridge
E) All three are on top of divergent zones

19. What two important positions are necessary when pinpointing the location of a volcano or earthquake on a map?

A) east, west
B) north, south
C) latitude, longitude
D) left, right
E) top, bottom

20. What are the coordinates of Mt. St. Helen's?

A) 5 degrees South, 110 degrees East
B) 4 degrees South, 77 degrees West
C) 23 degrees North, 88 degrees East
D) 14 degrees South, 121 degrees East
E) 40 degrees North, 120 degrees West

21. Diamonds are made of

A) carbon
B) gases
C) minerals
D) ash
E) topaz

22. Diamonds are known to be formed in the Earth's

A) outer core
B) mantle
C) biosphere
D) surface
E) inner core

23. Why does the oceanic crust sink beneath the continental crust at a subduction boundary?

A) The continental crust has a more magnetic composition.
B) The oceanic crust is pulled downward by Earth’s magnetic field.
C) The oceanic crust has a greater density.
D) The oceanic crust is hotter.
E) The oceanic crust has a lighter density.

24. Active volcanoes are most abundant along the

A) 23.5° E and 23.5° W parallels of longitude
B) edges of tectonic plates
C) 23.5° N and 23.5° S parallels of latitude
D) eastern coastline of continents
E) equatorial ocean floor

25. Which part of Earth’s interior is inferred to have convection currents that cause tectonic plates to move?

A) inner core
B) crust
C) asthenosphere
D) rigid mantle
E) outer core

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