Earth’s Interior
1. What is the upper part of the mantle known as
a. Mesosphere
b. Asthenosphere.
c. Lithosphere
d. Upper Mantle
2. What is the densest layer
a. Continental crust
b. Asthenosphere
c. Oceanic crust
d. Inner core
3. What layer is responsible for continental drift
a. Asthenosphere
b. Chromosphere
c. Lithosphere
d. Lower Mantle
4. Where is the transition zone located
a. Between asthenosphere and lower mantle
b. Between and crust
c. Between lower mantle and upper core
d. Between oceanic and continental crust
5. What layer is liquid?
a. Inner Core
b. Outer Core
c. Both a & b
d. Neither a or b
Mantel Convection
6. What is most of earth’s heat brought to the surface by?
a. rock
b. gravity
c. motion within the mantel
d. motion within volcanoes
7. What is not a theory of mantel convection?
a. Whole mantel convection
b. Semi-mantel convection
c. Layered mantel convection
d. Mantel plume convection
8. Where is mantel convection active?
a. lithosphere
b. mesosphere
c. asthenosphere
d. all of the above
9. What is happening to the heat of the earth?
a. Cooling off
b. Heating up
c. Staying the same
d. The heat is fluctuating
10. What is not true about mantel convection?
a. Earth’s magnetic field is proof it exists
b. It causes plates to move (plate tectonics)
c. It transfers heat from the interior of the Earth to the surface
d. Earth’s heat originates from the lower mantle
Plate Tectonics
11. What are the 3 kinds of plate boundaries?
a. Repulsion, Convergent, Slide
b. Convergent, Contraction, Transform
c. Divergent, Transform, Convergent
d. Repulsion, Divergent, Transform
12. Which of these is not a plate.
a. Juana De Fuca
b. Scotia
c. Pan-pacific
d. Caribbean
13. What factors determine the proximity of an island arc to the trench of a subducted zone?
a. Density of plates
b. Localization of plutons
c. Angle of subduction
d. Composition of crust
14. Divergent boundaries usually cause all but what?
a. Mid ocean ridges
b. Rift Valleys
c. Trenches
d. Greater seismic activity
15. What are continental plates composed of?
a. Granite
b. Basalt
c. Rhyolite
d. Gabbro
Plate tectonics GEODE
16. Movements of outer plates cause:
a. Earthquakes, volcanoes, tsunamis
b. Volcanoes, mountains, tsunamis
c. Earthquakes, volcanoes, mountains
d. Mountains, tsunamis, landslides
17. A convergent plate boundary occurs when
a. Plates move together
b. Plates move apart
c. Plates move horizontally pass each other
d. None of the above
18. How many intermediate plates are there?
a. 11
b. 2
c. 7
d. 5
19. At which boundary does seafloor spreading occur?
a. Transform
b. Convergent
c. Divergent
d. Oceanic
20. Which plate would be most steeply subducted?
a. Younger, denser plate
b. Older, denser plate
c. Older, less dense plate
d. Younger, less dense plate
Ray paths
21. Which is true about one of the possible ray paths?
a. Density increases with depth, rays are jagged and bend downward to the surface
b. Density decreases with depth, rays move in smooth curves and bend upward towards the
surface
c. Ray paths refracted by boundaries between layers while others are reflected
d. Ray paths are reflected by boundaries between layers while others are bent/refracted
22. Which of the following is the fastest wave?
a. S waves
b. P waves
c. Rayleigh waves
d. Love waves
23. Which of the following is not true about Rayleigh waves?
a. It moves up and down/ side to side because of high pressure
b. Moves in a circular motion
c. Rolls on the ground
d. Can be much larger than other waves
24. Which of the following travels through the Earth’s inner layers?
a. Rayleigh waves
b. Body waves
c. Love waves
d. Gravity waves
25. What do P waves transform into when they reach the Earth’s surface?
a. Love waves and body waves
b. Rayleigh waves and secondary waves
c. Seismic waves and Rayleigh waves
d. Love waves and Rayleigh waves
Tsunami
26. …. What causes tsunamis
a. …. Fault slips
b. …. Combination of multiple waves
c. …. Displacement of water
d. …. a and c
27. ….Where are tsunamis most common
a. …. Convergent plates
b. …. Divergent plates
c. …. Transitional plates
d. …. Oceans
28. …. Why are tsunamis dangerous
a. …. Water is very powerful
b. ….water is very fast
c. …. Tsunamis can reoccur
d. …. All of the above
29. ….What happens to the sea floor that indicates a tsunami
a. …. Strange animal behavior
b. ….magma rises from cracks in the floor
c. …. Seafloor uplift
d. ….water recedes
30. ….what happens before and after the initial wave
a. …. Water level returns to normal
b. …. Water recceds
c. …. Small successive waves
d. …. Fire breaks out
Types of Volcanoes
31. Divergent plate is when,
a. Plates move apart and a new ocean floor is produced
b. Plates move together and form a mountain
c. Two plates as subducted into the asthenosphere
32. Which is the arrangement of Volcanoes in order of smallest to largest?
a. Shield, composite, caldera, cinder cone, fissure
b. Fissure, cinder cone, composite, caldera, shield
c. Caldera, fissure, cinder cone, composite, shield
33. Which volcano is generally attached to the side of a composite volcano?
a. Calder
b. Fissure
c. Cinder cone
d. Shield
34. Volcanoes are found on tectonic plate boundaries as well as…
a. extraplates
b. silaplates
c. exoplates
d. intraplates
35. How does a Caldera volcano form?.
a. When magma is pushed up from the asthenosphere due to great pressure within the earth
b. When large cracks in the earths crust allow magma to escape onto the earths surface
c. When a magma chamber beneath a volcano is emptied by a major eruption
d. When convergent plates collide and build a circular depression which sometimes fills with water
to form a lake
a. aSigns of Volcanoes
36. ____ are produced when magma enters a fracture.
a. Batholiths
b. Laccoliths
c. Dikes
d. Sills
37. What is NOT a sign of volcano activity?
a. Changes in gas composition
b. Strange animal behavior
c. Changes in groundwater systems
d. Change in weather
38. Batholiths are large expanses of ______
a. Igneous rock
b. Sedimentary rock
c. Metamorphic
d. b and c
39. _____ dating can determine how often volcanic eruptions occur.
a. Relative
b. Blind
c. Radioactive
d. Radiometric
40. What happens when temperature goes above the curie point?
a. The rocks melt
b. The rocks lose their magnitude
c. Explosions
d. The ground swells
Characteristics of Volcanoes
41. Aa lava flows have all of these characteristics except:
a. Lava is basaltic
b. Dangerously sharp projections
c. Tend to move very slowly
d. Occurs from cooled gas
42. What type of volcano is least explosive?
a. ….shield
b. ….cinder cone
c. ….composite cone
d. ….caldera
43. ….What is the source material of mafic lava?
a. ….asthenosphere
b. ….oceanic crust
c. ….continental crust
d. ….none of the above
44. ….What is the most common gas released during an eruption?
a. CO2
b. sulphur
c. Water vapour
d. hydrogen sulphide
45. ….Viscous lava is high in
a. silica
b. water
c. both a & b
d. Neither a or b
1. B
2. D.
3. A.
4. A.
5. B
6. C
7. B
8. D
9. A
10. D
11. C
12. C
13. C
14. C
15. A
16. C
17. A
18. C
19. C
20. B
21. D
22. B
23. D
24. B
25. D
26. ...A
27. ...A
28. ...D
29. ...D
30. ...A
31. ...A
32. ...B
33. ...C
34. ...D
35. ...C
36. C
37. D
38. A
39. D
40. B
41. ...c
42. ...a
43. ...a
44. ...c
45. ...a