Ch. 6 Test Plate Tectonics Question Preview (ID: 21553)


Test 1 For 2nd Nine Weeks. TEACHERS: click here for quick copy question ID numbers.

Plates move horizontally past each other along a
a) convergentboundary
b) divergent boundary
c) rift valley
d) transform boundary

A spreading center is a ___________ on the ocean floor
a) convergent boundary
b) divergent boundary
c) rift valley
d) transform boundary

Two plates scrape past each other at
a) convergent boundaries
b) divergent boundaries
c) transform boundaries
d) magnetic boundaries

An enourmous gap that forms when new crust cools and moves apart is called a
a) convergent boundary
b) divergent boundary
c) rift valley
d) transform boundary

A ____________ occurs wherever two plates move towards each other
a) convergent boundary
b) divergent boundary
c) rift valley
d) transform boundary

A continental-continental collision causes
a) oceanic-continental subduction to occur
b) oceanic-oceanic subduction to occur
c) hot spots to occur
d) mountain ranges to form

New crust forms along
a) convergent boundary
b) divergent boundary
c) ocean trench
d) subduction zone

Oceanic crust at a mid-ocean ridge
a) younger than crust near a trench
b) older than crust near a trench
c) much older than continental crust
d) about the same age as continental crust

Which of these did Wegner use to support continental drift
a) similar rocks on different continents
b) spreading on the ocean floor
c) convection currents in the lithosphere
d) magnetic reversal recorded on Pangea

Many scientist rejected continental drift when it was first proposed because
a) studies of the ocean floor revealed its younger age
b) Wegnear had no evidence to expalin the existence of Pangea
c) reversals in earths magnetic field had not occured yet
d) Wegner could not explain how earth's continents moved

The alps are forming as a result of the European and the African plates pushing against each other. This is an example of
a) oceanic-oceanic subduction
b) oceanic-continental collision
c) oceanic-continental subduction
d) continental-continental collision

Crust is neither formed or destroyed along
a) convergent boundaries
b) transform boundaries
c) oceanic-oceanic boundaries
d) oceanic-continental boundaries

Which of the following causes plate movement
a) convection currents in the lithosphere
b) convection currents in the core
c) ride push, slab pull, and convection in the lithosphere
d) ridge push, slab pull, and convection in the asthenosphere

Island arcs, like the islands of Japan, form when two
a) oceanic plates scrape past each other
b) continental plates scrape past each other
c) oceanic plates converge
d) continental plates converge

What happens during a continental-continental collision
a) Folded mountain belts form
b) one plate sinks below the other plate
c) mountains with volcanic peaks form
d) island arcs form parallel to a trench

Earth's inner core and outer core are both
a) parts of the molten asthenosphere
b) parts of the earths rigid lithosphere
c) completely solid spheres
d) made of hot metals

Most tectonic plates are made of
a) Continental crust and oceanic crust
b) the crust and very top of mantle
c) parts of earth's lithosphere and asthenosphere
d) the rigid, upper mantle and part of the asthenospere

Subduction occurs
a) along a transform boundary in the ocean
b) when two oceanic plates pull apart
c) when two continental plates converge
d) when an oceanic plate and another plate converge

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