A hotspot occurs because of what

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Reference no: EM131046861

QUESTION 1. At an oceanic-continental convergence zone, how is the continental plate's crust deformed?

a. by the formation of a trench

b. by the formation of volcanic island arcs

c. by the formation of coastal volcanic mountain ranges

d. by the formation of rift valleys

QUESTION 2. What type of volcano is characterized by low silica magma and relatively nonviolent eruptions?

a. hotspots

b. stratovolcanoes (also called composite volcanoes)

c. lava domes

d. shield volcanoes

QUESTION 3. A hotspot occurs because of what?

a. a mantle plume

b. a trench

c. volcanic island arcs

d. earthquakes

QUESTION 4. What feature is common to subduction zones?

a. coastal volcanic mountain ranges

b. trenches

c. volcanic island arcs

d. rift valleys

QUESTION 5. Which of the following continental structural components is a large, relatively flat area of ancient igneous and metamorphic rock?

a. shield

b. stable platform

c. folded mountain belt

d. orogenic belt

QUESTION 6. Which of the following is noted as you move outward, away from the mid-ocean ridge?

a. alternating layers of young and old sediments

b. a gravitational anomaly indicating that materials are denser toward the ridge

c. that sediments become lighter and deposits become thinner

d. magnetic variation in successive bands of the ocean floor

QUESTION 7. After Pangaea broke up, Laurasia consisted of which modern locations?

a. Asia and Africa

b. North America, Europe, and Asia

c. Africa, South America, and the Pacific Islands

d. Asia, Australia, and Antarctica

QUESTION 8. A tectonic boundary characterized by plates moving toward each other is called what?

a. transform

b. divergent

c. convergent

d. spreading

QUESTION 9. What are earthquake waves called that travel relatively fast and through nearly any type of material?

a. surface waves

b. love waves

c. shear waves

d. p-waves

QUESTION 10. A shift in the seafloor at a fault line can cause a(n)__________.

a. normal ocean wave

b. tsunami

c. epicenter

d. hurricane

QUESTION 11. Continental rift zones are areas where the crust has been _____.

a. compressed

b. uplifted and pulled apart

c. folded and faulted

d. fractured by reverse faults

QUESTION 12. What are large waves of sea water triggered into motion by an earthquake called?

a.Raleigh waves

b. love waves

c. tsunamis

d. s-waves

QUESTION 13, Which part of the Earth is composed of the crust and the upper mantle?

a. asthenosphere

b.core

c. lithosphere

d. mesosphere

QUESTION 14. Earth's crust is made mostly of what?

a. silicate minerals

b. iron

c. water

d. nickel

QUESTION 15. What kind of waves are vibrations that move away from an earthquake's origin?

a. epicenter waves

b. seismic waves

c. fault waves

d. focus waves

QUESTION 16. Which of the following is NOT an indication that all of Earth's landmasses were once joined together and then split apart due to tectonic activity?

a. the shapes of the continents and how they appear to be pieces of a jigsaw puzzle

b. similarities between fossils in locations now separated by sea

c. similarities in rock structures between the east coast of North America and the west coast of Europe

d. similarities in vegetation between equatorial regions of different continents

QUESTION 17. Which of the following should you NOT do immediately after an earthquake?

a. seek communication with family members

b. turn on the lights

c. avoid using candles

d. all of the above

QUESTION 18. Differences in which of the following contribute to subduction?

a. density

b. silicate content

c. iron content

d. mass

QUESTION 19. Which of the following statements is true about Earth?

a. Earth is the largest planet in the solar system.

b. Earth's atmosphere was always rich in oxygen.

c. Earth's atmosphere did not start out rich in oxygen.

d. Earth is the smallest planet in the solar system.

QUESTION 20. Which of the following environmental problems can be associated with volcanic eruptions?

a. acid rain

b. destruction of the ozone layer

c. both a and b

d. build up of photochemical smog

QUESTION 21. What type of magma will have the most built-up pressure because of its high strength and viscosity?

a. recrystallized

b. basaltic

c. iron-rich

d. silica-rich

QUESTION 22. Which effects of an earthquake are fires and landslides?

a. primary

b. secondary

c. tertiary

d. quaternary

QUESTION 23. In a subduction zone. where does the subducting plate actually sink?

a. at coastal volcanic mountain ranges

b. at trenches

c. at volcanic island arcs

d. at rift valley

QUESTION 24. Which feature forms at continental-continental convergence zones?

a. trenches

b. non-volcanic mountain ranges

c. volcanic mountain ranges

d. rift valleys

QUESTION 25. Why are volcanoes common at convergent plate boundaries?

a. Stress builds up as one continent pushes against another one.

b. Due to subduction, rock material is melted in the mantle and then moves back upward as magma.

c. Continental plates are subducted at trench zones, causing the upward flow of magma.

d. The opening up of a mid-ocean ridge lets magma well up from the mantle.

Reference no: EM131046861

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