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