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What three observations led geologists to believe that the continents were all joined at one point?
Pangea
Old rock sinks into ocean trenches and is replaced by lava that cools and forms newer rock
They create a mountain
Seafloor spreading
Fossil remains that matched, continents fit together like a puzzle and mountains that matched up
Over a very long time the continents moved to where they are today
The oceanic crust gets subducted by the continental crust
sand and small rock
What happens when two continental crust pieces hit each other?
Pangea
Old rock sinks into ocean trenches and is replaced by lava that cools and forms newer rock
They create a mountain
Seafloor spreading
Fossil remains that matched, continents fit together like a puzzle and mountains that matched up
Over a very long time the continents moved to where they are today
The oceanic crust gets subducted by the continental crust
sand and small rock
What is seafloor spreading?
Pangea
Old rock sinks into ocean trenches and is replaced by lava that cools and forms newer rock
They create a mountain
Seafloor spreading
Fossil remains that matched, continents fit together like a puzzle and mountains that matched up
Over a very long time the continents moved to where they are today
The oceanic crust gets subducted by the continental crust
sand and small rock
What is sediment?
Pangea
Old rock sinks into ocean trenches and is replaced by lava that cools and forms newer rock
They create a mountain
Seafloor spreading
Fossil remains that matched, continents fit together like a puzzle and mountains that matched up
Over a very long time the continents moved to where they are today
The oceanic crust gets subducted by the continental crust
sand and small rock
What landmass was formed when all of the continents were together?
Pangea
Old rock sinks into ocean trenches and is replaced by lava that cools and forms newer rock
They create a mountain
Seafloor spreading
Fossil remains that matched, continents fit together like a puzzle and mountains that matched up
Over a very long time the continents moved to where they are today
The oceanic crust gets subducted by the continental crust
sand and small rock
What is the processes that keeps the age of ocean floor rock from going over 200 years old?
Pangea
Old rock sinks into ocean trenches and is replaced by lava that cools and forms newer rock
They create a mountain
Seafloor spreading
Fossil remains that matched, continents fit together like a puzzle and mountains that matched up
Over a very long time the continents moved to where they are today
The oceanic crust gets subducted by the continental crust
sand and small rock
What was Alfred Wegener's Hypothesis about the continents.
Pangea
Old rock sinks into ocean trenches and is replaced by lava that cools and forms newer rock
They create a mountain
Seafloor spreading
Fossil remains that matched, continents fit together like a puzzle and mountains that matched up
Over a very long time the continents moved to where they are today
The oceanic crust gets subducted by the continental crust
sand and small rock
When a continental plate and an oceanic plate converge which one gets subducted?
Pangea
Old rock sinks into ocean trenches and is replaced by lava that cools and forms newer rock
They create a mountain
Seafloor spreading
Fossil remains that matched, continents fit together like a puzzle and mountains that matched up
Over a very long time the continents moved to where they are today
The oceanic crust gets subducted by the continental crust
sand and small rock
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