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