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