- 1. The two types of crust are _________________________ and _________________________.
A) oceanic, continental B) oceanic, volcanic C) continental, volcanic D) land, pangaea E) oceanic, land
- 2. Iceland, the Samoan Islands, and Hawaii are examples of landforms created by ____________________________.
A) a hot spot B) a ring of fire C) a divergent zone D) a subduction zone E) a convergent zone
- 3. At mid-ocean ridges, new ____________________________ crust is created.
A) transform B) volcanic C) continental D) convergent E) oceanic
- 4. Seafloor spreading is a process that creates new ________________________ crust.
A) volcanic B) oceanic C) continental D) transform E) convergent
- 5. The _________________________ Islands are located in the middle of the Pacific plate.
A) Icelandic B) Australian C) Ring D) Samoan E) Hawaiian
- 6. Convection currents in our Earth's mantle drives the process that moves our __________________________.
A) crusts B) mountains C) clouds D) volcanoes E) oceans
- 7. The largest and most powerful mountains and volcanoes are located _____________________________.
A) on the surface B) underwater C) above surface D) on Australia E) on Iceland
- 8. Areas where continental and oceanic plates converge are also said to be _____________________________.
A) mid-pacific zones B) Icelandic zones C) mid-atlantic zones D) Australian zones E) subduction zones
- 9. Between oceanic and continental crusts, the ___________________ crust is more dense.
A) continental B) divergent C) oceanic D) convergent E) transform
- 10. The rate of seafloor spreading is approximately ______________ every 10 years.
A) 30 cm B) 30 meters C) 30 inches D) 3 inches E) 3 cm
- 11. As the ocean seafloor spreads, the newly formed floor will adapt a specific magnetic signature according to the Earth's magnetic pole at that time. As years pass, lateral segments of seafloor will thus share the same _____________________ signature on either side of the mid-oceanic ridge.
A) zubductive B) convergent C) volcanic D) magnetic E) divergent
- 12. In seafloor spreading, the further the ocean floor is away from the mid-ocean ridge, the _____________________ that floor will be.
A) older B) newer C) prettier D) younger E) rockier
- 13. Iceland is located in the middle of _______________________________________________________________.
A) the mid-Australian ridge B) the mid-convergent ridge C) the mid-Caribbean ridge D) the mid-Atlantic ridge E) the mid-Pacific ridge
- 14. In an island chain such as Hawaii, volcanic islands further away from the hot spot will tend to be ________________________.
A) younger B) older C) prettier D) rockier E) newer
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