Which of the following is NOT true of a hotspot?(1 point)
Responses
A. Hotspots can be active volcanoes
B. Hotspots are typically found in the middle of a tectonic plate.
C. Hotspots are often found at the edges of tectonic plates
D. The Hawaiian islands are an example of a hotspot.
C. Hotspots are often found at the edges of tectonic plates
Why do Earth’s tectonic plates move?(1 point)
Responses
A. Gravity pulls them to the center of the Earth.
B. They float on convection currents in the mantle.
C. Liquid iron in the outer core causes them to move.
D. Ocean currents near the mid-ocean ridge push the plates.
B. They float on convection currents in the mantle.
Where are the newest parts of Earth’s crust located?(1 point)
Responses
at mid-ocean ridges
at the edges of continents
at the tops of mountains
in the cratons of continents
at mid-ocean ridges
Transform, Convergent, Divergent
Convergent, Divergent, Transform
Divergent, Convergent, Transform
Divergent, Transform, Convergent
Identify the most likely location for an Earthquake of high magnitude.(1 point)
Responses
Oceanic-Oceanic, Divergent Boundary
Oceanic-Oceanic, Transform Boundary
Oceanic-Continental, Convergent Boundary
Oceanic-Continental, Convergent Boundary
At which type of plate boundary would a string of small volcanic islands most likely form?(1 point)
Responses
transform boundary
divergent ocean-ocean boundary
convergent ocean-continental boundary
convergent ocean-ocean boundary
convergent ocean-ocean boundary
What is most likely to happen where two continental plates collide at a convergent boundary?(1 point)
Responses
One plate is subducted beneath the other.
The direction shifts and it becomes a transform boundary.
The plates push up, forming a mountain range.
A volcanic island arc is formed.
The plates push up, forming a mountain range.
Geologists found fossils of similar marsupials from the same time period across South America, Africa, Antarctica, India and Australia. What theory is supported by this discovery?(1 point)
Responses
The processes happening today are the same processes that have occurred in the past.
Those continents were once a part of one supercontinent.
A vast land bridge once connected those continents.
Early marsupials were strong swimmers.
Those continents were once a part of one supercontinent.
At which type of boundary is new oceanic crust created?(1 point)
Responses
a convergent boundary
a transform boundary
a subduction zone
a divergent boundary
a divergent boundary
Which of these pieces of evidence did Alfred Wegener cite to support his hypothesis of continental drift?(1 point)
Responses
New oceanic crust formed between the northern and southern continents, pushing them apart.
The continents fit together like a puzzle.
Similar fossils have been found at the bottom of the ocean and on land.
Contraction of the Earth caused folded mountains to form.
The continents fit together like a puzzle.
Which best explains mantle convection?(1 point)
Responses
Cooler material in the mantle moves down, and warmer material in the mantle moves up.
Warmer material in the mantle moves down, and cooler material in the mantle moves up.
Warmer and cooler material in the mantle move down.
Warmer and cooler material in the mantle move up.
Cooler material in the mantle moves down, and warmer material in the mantle moves up.
What did Alfred Wegener try to prove with fossil evidence?(1 point)
Responses
that Earth is round, not flat
that Earth once had no continents
that Earth's landmasses moved over time
that Earth is almost 5 billion years old
that Earth's landmasses moved over time
Why is the Plate Tectonic Theory accepted today over the Continental Drift Theory?(1 point)
Responses
The continents nor the plates truly move, they just appear to
All plates of Earth's crust move, not just the landmasses
The continents did move at one time but have moved back together
The marsupial fossils found were not great evidence that Pangaea once existed