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WorksheetsPlate Tectonics Review - 2020
Total questions: 52
Worksheet time: 1hrs 28mins
In some areas of the world, like California and Japan, earthquakes are a common occurrence. How can this best be explained?
The strong ocean currents are undermining both areas causing earthquakes.
Both areas are located near the edge of the Pacific Ocean, the unstable sand causes earthquakes.
Both areas are subjected to strong ocean wind and waves that causes earthquakes.
Both areas are on the boundary of active plates, the motion of the plates causes earthquakes.
Observe this diagram of a plate boundary. One statement BEST describes what is happening. It is that
the oceanic crust is melting.
the denser ceanic crust is subducting under the less dense oceanic crust
volcanic islands are forming.
the tectonic plates are moving away from each other.
The map in the picture shows tectonic plate boundaries. This map would be useful in predicting the location of future
droughts
hurricanes
earthquakes
tornadoes
Earthquake epicenters (center of where the earthquakes started) were mapped for a 35 year period in the diagram above. The black dots indicate these epicenters. The black dots appear along what feature on Earth?
hot spots
plate boundaries
rift zones
sea floor spreading
Where would sea floor spreading most likely occur?
At convergent boundaries (oceanic vs. oceanic)
At convergent boundaries (oceanic vs. continental)
At divergent plate boundaries (oceanic vs. oceanic)
At transform plate boundaries
Who first proposed the idea of Continental Drift?
Harry Hess
Alfred Wegener
Albert Einstein
Galileo Galilee
What did Wegener name the large supercontinent where all the continents were joined together?
Wegenerland
Gondwanaland
Laurasia
Pangaea
Most geologists rejected Wegener's idea of Continental Drift because _________.
He used too many pieces of evidence to support the idea.
He wanted to know what Earth looked like millions of years ago, which is impossible.
He couldn't identify what would cause continents to move around.
They were afraid of the new idea.
Wegener used the fit of the continents as evidence to support his hypothesis of Continental Drift.
true
false
Wegener used matching mountain ranges across different continents as evidence to support his hypothesis of Continental Drift.
true
false
Wegener used matching matching fossils of the same organisms on different continents as evidence to support his hypothesis of Continental Drift.
true
false
Wegener used evidence of glaciers in places now too warm as evidence to support his hypothesis of Continental Drift.
true
false
Wegener used matching rock types and ages across different continents as evidence to support his hypothesis of Continental Drift.
true
false
Wegener used evidence of convection currents in the mantle as evidence to support his hypothesis of Continental Drift.
true
false
What discovery revived Wegener's idea of Continental Drift and eventually led to the Theory of Plate Tectonics?
discovery of new fossils on Africa and South America
the discovery of mid-ocean ridges and seafloor spreading
the discovery of radioactive isotopes
none of the above
Who first proposed the idea of seafloor spreading?
Alfred Wegener
Harry Hess
James Hutton
Nicolaus Copernicus
Why was the evidence of seafloor spreading so important to the idea of Continental Drift?
it answer the question for HOW continents could be moving
it disproved Alfred Wegener's hypothesis of Continental Drift
It shows how land bridges let prehistoric animals cross the oceans
all of these are true
Which of the following were peices of evidence used by Alfred Wegener to support his hypothesis of Continental Drift? (choose ALL that apply)
fit of the continents
matching rocks and mountains across continents
matching fossils across continents
evidence of glaciers in places now too warm
magnetic striping on the seafloor showing seafloor spreading
What two words are BEST used to describe how the seafloor spreads?
Magma and convection
Earthquakes and convection
Mountains and Rift Valleys
Volcanoes and earthquakes
Process by which new ocean crust forms.
Seafloor spreading
Continental drift
Mid-ocean ridge
Rift
What is label D
Trench
Mid ocean ridge
abyssal plain
sea mount
what is a Divergent boundary?
One big continent or land mass.
a plate boundary where two plates move toward each other.
A plate boundary where two plates move away from each other.
the point on Earth’s surface directly above an earthquake’s focus.
What is a Convergent boundary?
the theory that pieces of Earth’s lithosphere are in constant motion, driven by convection currents in the mantle.
One big continent or land mass.
the process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary.
a plate boundary where two plates move toward each other.
What is a Subduction?
the theory that the Earth's continents have moved over geologic time.
Developed the Continental Drift Theory.
One big continent or land mass.
the process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary
