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10 questions
Which piece of evidence did Alfred Wegener's original theory of continental drift have access to?
mountains in North America appearing to match up with mountains in Northern Europe
a seafloor that was geologically active with earthquakes, volcanoes, and mountain chains
reversing paleomagnetism in rocks on the ocean floor
seafloor spreading at mid-ocean ridges
Which piece of evidence did Alfred Wegener's original theory of continental drift have access to?
evidence of ancient tropical swamps in cold regions of North America
seafloor spreading at mid-ocean ridges
reversing paleomagnetism in rocks on the ocean floor
a seafloor that was geologically active with earthquakes, volcanoes, and mountain chains
The Earth's plates moved over millions of years, bringing continents and other features of the Earth to their present arrangement.
How is this movement of the lithosphere explained?
the theory of plate tectonics
continental drift
the principle of superposition
nuclear fusion
Which theory states that Earth's lithosphere is divided into moving pieces?
plate tectonics
Robinson's theory
convection theory
continental drift
Which description best presents the arrangement of continents, oceans, and landforms according to the theory of plate tectonics?
the motion of lithospheric plates over millions of years
oceans eroding along different paths within a single continent over millions of years, causing it to break up
several divisions of two original continents over millions of years
large pieces of Pangaea drifted in different directions over millions of years
Which theory best explains the present arrangement of continents, oceans, and landforms on Earth?
the continental puzzle theory
the Pangaea theory
Wegener's continental theory
plate tectonic theory
Which description tells two processes scientists think move the Earth's lithospheric plates?
gravity acting on the edges of plates and friction between the plate and the asthenosphere
friction between the plate and the asthenosphere and pressure of magma on the edge of the plate
gravity acting on the edges of plates and convection in the mantle
convection in the mantle and pressure of magma on the edge of the plate
Which pair of forces do scientists believe are responsible for tectonic plate motion?
gravity acting on the edges of plates and friction between the plate and the asthenosphere
friction between the plate and the asthenosphere and pressure of magma on the edge of the plate
gravity acting on the edges of plates and convection in the mantle
convection in the mantle and pressure of magma on the edge of the plate
Which statement is true about the theory of plate tectonics and the theory of continental drift?
The theory of plate tectonics explains how continental movements could occur.
The theory of plate tectonics shows that continental movements could not have happened.
The theory of plate tectonics tells exactly where the continents were before Pangaea divided.
The theory of plate tectonics shows that Pangaea was impossible, but the continents did move.
Which statement is true about the theory of plate tectonics and the theory of continental drift?
The theory of plate tectonics does not explain how continental movements could occur.
The theory of plate tectonics proves the theory of continental drift completely wrong.
The theory of plate tectonics tells exactly where the continents were before Pangaea divided.
The theory of plate tectonics gives the method by which continents can move as part of plates.
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