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