Chapter 3 Plate Tectonics Continued Question Preview (ID: 21018)
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Wha tis the correct order of the layers of Earth, starting from the outside working your way in?
a) crust, outer core, inner core mantle
b) mantle, outer core, inner core crust
c) crust, mantle, outer core, inner core
d) outer core, inner core, mantle, crust
What is Pangaea?
a) the name of a German scientist.
b) the name of the supercontinent that existed millions of years ago.
c) another name for continental drift.
d) the name of an ancient fossil.
Wegener's ideo of continental drift was rejected because
a) the science community was afraid of new ideas.
b) Wegener was interesed in what Earth was like millions of years ago.
c) Weger used several different types of evidence to support his hypothesis.
d) Wegener could not identify the force causing the continents to move.
In sea-floor spreading, molten material rises from the mantle and erupts
a) along the edges of all the continents
b) along mid-ocean ridges.
c) in deep-ocean trenches.
d) along the equator.
Earth's mantle is
a) a layer of molten metal.
b) a lyer of hot rock.
c) a dense ball of solid metal.
d) a layer of rock that forms Earth's outer skin.
Using data from seismic waves, geologists have learned that Earth's interior is made up of several
a) layers
b) continents
c) plates
d) ridges
Most geologist think that the movement of Earth's plates is caused by
a) conduction
b) earthquakes
c) convection currents in the mantle
d) Earth's magnetic field.
The process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle is known as
a) convection
b) continental drift
c) subduction
d) conduction
The place where 2 plates come together is known as a
a) transform boundary
b) divergent boundary
c) convergent boundary
d) rift valley
In the mantle, heat is transferred as soft rock flows slowly in cycles known as
a) conduction
b) convection currents
c) subduction
d) radiation
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