Plate Tectonics Question Preview (ID: 52716)


Plate Tectonics. TEACHERS: click here for quick copy question ID numbers.

The continental crustal plates have moved hundreds of miles in the last 200 million years. This is due to
a) the gravity of the moon
b) supernatural forces
c) misinterpretation of scientific data
d) convection forces in the upper mantle

Which layer of the earth is the hottest?
a) Solid inner core
b) Mantle
c) Liquid Outer Core
d) Crust

Choose the correct answer about the Ring of Fire
a) The Ring of Fire is known for a high percentage of forest fires
b) The Ring of Fire is a zone of earthquakes and volcanic activity
c) The Ring of Fire is located around the Pacific Plate
d) The Ring of Fire lies in the middle of the North American Plate

Compared to oceanic crust near deep-sea trenches, oceanic crust near mid-ocean ridges is
a) older
b) same age
c) magnetically reversed
d) younger

What best describes the process of subduction?
a) The process of tectonic plates pulling away from one another leaving cracks between them
b) The process of two plates that hold land masses colliding causing both plates to shift upward forming a mountain range.
c) The process of more dense plates sinking beneath a less dense plate during a tectonic collision.
d) The formation of a fault when two plates meet and both sink at the same time, creating a chasm between them

Compared to Earth's continental crust, Earth's oceanic crust is
a) thicker and less dense
b) thinner and less dense
c) thicker and denser
d) thinner and denser

When the sea floor spreads apart, volcanoes and ridges are formed because
a) sediments are deposited where the floor spreads, building ridges
b) ocean water pushes down on the surrounding sea floor, pushing up ridges
c) as the plates pull apart, magma moves to the surface, building ridges
d) underwater earthquakes life the sea floor into long ridges

The earth's mantle is made up of very hot material that rises to the top of the mantle, cools, then sinks, reheats, and rises again, constantly repeating the cycle. These currents cause the earth's crust to move. They are
a) Magnetic Fields
b) Advection Forces
c) Hot Spots
d) Convection Currents

Identical rock types, identical fossils, and very similar mountain ranges are found on different continents that are separated by a wide ocean. Which of these BEST explains these observations?
a) Organisms traveled between these continents on land bridges
b) These continents were joined together at one time in the past
c) The same forces erode mountains in different locations
d) Some rock types are very common and found everywhere

One of Alfred Wegener's problems in explaining his Theory of Continental Drift was
a) his lack of scientific background
b) he lacked knowledge of the underlying mechanisms that drive it
c) his evidence was lacking
d) anti-German prejudice

Coal beds in Antarctica indicated to Wegener that this continent was
a) once located closer to the equator
b) once beneath the ocean
c) inhabited by penguins
d) always cold

Most volcanoes occur
a) far from tectonic plate boundaries
b) along divergent boundaries
c) randomly
d) along convergent boundaries

Early mapmakers thought continents might have moved based on their observations of
a) earthquakes and floods
b) Gondwanaland
c) matching coastlines
d) rock and fossil evidence

What do you call the process in which fluids are heated, rise, cool, and then sink?
a) convection
b) permeation
c) radiation
d) conduction

Which represents the correct order of the density layers of the earth from outermost to innermost
a) inner core, outer core, lower mantle, upper mantle, crust
b) lower core, upper core, inner mantle, outer mantle, crust
c) crust, outer core, lower mantle, upper mantle
d) crust, upper mantle, outer core, inner core

Which of the following is NOT part of the Earth's lithosphere?
a) The inner core
b) the crust
c) the upper mantle
d) rocks on the surface

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