Plate Tectonics Assessment Noel Pd 8
- 1.The youngest rocks on the ocean floor are located _____________.
- A.
Near the continents
- B.
At the mid-ocean ridges
- C.
Far from the mid-ocean ridges
- D.
Near Asia
- 2.The crust and upper mantle make up Earth's ____________
- A.
Lithosphere
- B.
Asthenosphere
- C.
Core
- D.
Continents
- 3.Scientists have observed that the plates move at rates ranging from 2 cm to 12 cm per_____.
- A.
Century
- B.
Decade
- C.
Day
- D.
Year
- 4.Plates of the lithosphere float on Earth's thick, plastic like layer called the ____________.
- A.
Crust
- B.
Asthenosphere
- C.
Core
- D.
Atmosphere
- 5.The _________are mountains on the northern most boundary of India formed by the collision of the Indo-Australian Plate and the Eurasian Plate
- A.
Alps
- B.
Rockies
- C.
Himalaya
- D.
Appalachian
- 6.The presence of the same ___________on several continents supports the hypothesis of continental drift.
- A.
Fossils
- B.
Rock structures
- C.
Fossils and rock structures
- 7.Plates move apart at ____________ boundaries
- A.
Convergent
- B.
Stable
- C.
Divergent
- D.
Transform
- 8.A lack of explanation for continental drift prevented many scientists from accepting that a single supercontinent called _________________ once existed.
- A.
Glomar
- B.
Glossopteris
- C.
Pangaea
- D.
Wegener
- 9.Plates slide past one another at ______________.
- A.
Subduction zones
- B.
Transform Boundaries
- C.
Convection Currents
- D.
Divergent Boundaries
- 10.The boundary between two plates colliding together is called a(n) ___________.
- A.
Divergent Boundary
- B.
Convergent Boundary
- C.
Transform Boundary
- D.
Lithosphere
- 11.Seafloor spreading occurs because ____________.
- A.
New material is being added to the asthenosphere
- B.
Earthquakes break apart the ocean floor
- C.
Sediments accumulate at the area of spreading
- D.
Molten material beneath Earth's crust rises to the surface
- 12.Continental drift states that continents have moved _______ to their current location.
- A.
Very Little
- B.
Slowly
- C.
Quickly
- 13.Wegner believed that the continents originally broke apart about ___________ years ago.
- A.
200 Million
- B.
300 Million
- C.
400 Million
- D.
500 Million
- 14.A fossil plant that helps support the theory of continental drift is ____________.
- A.
Mesosaurus
- B.
Glossopteris
- 15.Bands of rock on the seafloor showing alternating magnetic orientation indicate Earth's magnetic field has __________.
- A.
Reversed itself in the past
- B.
Weakened
- C.
Become stronger
- D.
Retained the same
- 16.A _______ is a sensitive device used to detect magnetic fields on the seafloor.
- A.
Seismometer
- B.
Magnetometer
- C.
Geologist's Compass
- 17.______ currents inside Earth are currently the best explanation for tectonic plate motion.
- A.
Vertical
- B.
Convection
- C.
Horizontal
- D.
None of the answers are correct
- 18.Scientists believe that differences in _____ cause hot, plasticlike rock in the asthenosphere to rise toward Earth's surface.
- A.
Density
- B.
Magnetism
- 19.In order to complete a convection current, the rising material must eventually _________ Earth.
- A.
Stop inside the
- B.
Cool the
- C.
Sink Back Into
- D.
Warm
- 20.The Great Rift Valley in Africa is a ____________.
- A.
Transform Boundary
- B.
Divergent Boundary
- C.
Convergent Boundary
- 21.The Andes mountain range of South America was formed at a ________.
- A.
Convergent Boundary
- B.
Divergent Boundary
- C.
Hot Spot
- D.
Transforming Boundary
- 22.Of the possibilities listed below, active volcanoes are most likely to form at ___________.
- A.
Transform Boundaries
- B.
Convergent continental-continental boundaries
- C.
The center of continents
- D.
Convergent oceanic-continental boundaries
- 23.______ are formed when two continental plates collide.
- A.
Volcanoes
- B.
Strike-Slip faults
- C.
Mountain Ranges
- D.
Rift Valleys
- 24.The _______ is an example of a transform boundary.
- A.
Appalachian Mountains
- B.
Himalaya
- C.
Mid-ocean Ridge
- D.
San Andreas Fault
- 25.A __________ forms where two oceanic plates collide.
- A.
Rift Valley
- B.
Subduction Zone
- C.
Transform Boundary
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