A good example of a transform boundary is:
The Philippine Islands in the Pacific.
The Andes Mountains in South America.
The Cascade Range in the Western U.S.
The San Andreas Fault in California.
As the leading edge of a tectonic plate moves back into the Earth, gravity can assist its movement downward. This is known as what?
Slab pull
Thermal convection
Ridge push
Trench suction
Convergent and transform plate boundaries can both be responsible for:
The metamorphosis of fault lines between tectonic plates.
Generating strong earthquakes.
Continental drift and global warming.
The expansion of the ocean floor and a rich marine life.
As the leading edge of a tectonic plate is forced back into the mantle, a small convection current forms beneath it, pulling it downwards. This is known as what?
All answers are correct
Slab pull
Thermal convection
Trench suction
Which of these is a FALSE statement about hot spots?
Hot spots prove that tectonic plates are not stationary.
The Hawaiian Islands are examples of hot spots.
Hot spots occur at the boundaries of tectonic plates.
Hot spots occur within tectonic plates.
What fossils did Wegener NOT use to support his idea of continental drift?
Cynognathus
Mesosaurus
Lystrosaurus
Tyrannosaurus
Ocean trenches and volcanic mountains are two surface features commonly found at:
Convergent plate boundaries.
Transform plate boundaries.
All types of plate boundaries.
Divergent plate boundaries.
Which of the following major plates is located farthest south?
The African Plate
The Arctic Plate
The Antarctic Plate
The South American Plate
Which of the following represents a divergent boundary?
The Cascade Mountains
The East African Rift Valley
The Andes Mountains
The San Andreas Fault
We would be likely to find a rift valley growing at:
A continental shelf.
The deepest point of the ocean basin.
A divergent boundary.
A zone of continental uplift.
Wegener's name for the super-continent he thought existed before the continents broke apart was _____.
Pangea
Lunagea
Panthallassa
Geotechnic
The modern continent of North America was most recently part of the landmass called:
Antarctica
Gondwana
Pangaea
Laurasia
Which of the following can be formed by a convergent boundary?
All of these
Deep ocean trenches
Volcanic islands
Volcanic mountains
In what way does the Pacific plate distinguish itself from the others?
It is the only transform plate.
It is the smallest yet the most active tectonic plate.
It is the largest tectonic plate.
It is the least active.
What was the name of the project started in the 1960s that was designed to extract and analyze samples from the ocean floor?
The Seafloor Drilling Project
The Deep Sea Drilling Project
The Ocean Basin Project
The Glomar Project
When plates that are higher at the spreading center flow downhill and eventually flatten out to the ocean floor, we call that _____.
slab pull
ridge push
earthquakes
both ridge push and slab pull
What is the Cascade Range an example of?
A volcanic arc along an ocean-continent boundary.
A subduction zone along a divergent boundary.
Catastrophic dynamism of the Earth's crust.
Past Mid-Atlantic ridge transformation.
What do we know about the continents we have today?
They will never form another supercontinent.
They formed when Pangaea split apart.
They float on top of the ocean floor.
They have stopped moving due to plate tectonics.
The outermost shell of the earth made up of the crust and upper part of the mantle is called the _____
asthenosphere
lithosphere
atmosphere
magnetosphere
What separates the South American plate and the African plate?
The Indian Ocean
The Mid-Pacific Ridge
The Mid-Atlantic Ridge
The Indo-Australian Plate
What discovery was NOT made from mapping the ocean floor?
Underwater volcanoes
Seafloor spreading
Magnetic immobility
Magnetic stripes in ocean rock
Gondwana and Laurasia formed when:
The North American continent separated from Australia.
Antarctica broke away from Australia and Pangaea.
The supercontinent of Pangaea broke apart.
The ocean basin erupted in volcanic activity.