What are the evidence of the plate movement?
Evidence from fossils, glaciers, and complementary coastlines helps reveal how the plates once fit together. Fossils tell us when and where plants and animals once existed. Some life "rode" on diverging plates, became isolated, and evolved into new species.
Which of the following provides evidence for past tectonic plates motions?
Q. Which of the following provides evidence for past tectonic plate motions? Matching rock type and rock formations can show the way the continents were once attached. Glacial evidence has been found in areas where glaciers could exist if the continents were in their current location.
What evidence supports plate tectonics quizlet?
What are the five main pieces of evidence for the Theory of Plate Tectonics? Magnetic striping, Age of the ocean's crust rocks, Coral islands, The position of ocean trenches and the locations of earthquakes and volcanoes.
What are the 3 causes of plate movement?
Scientists have theorized three mechanisms that cause plate movement on Earth. These three mechanisms are thermal convection, ridge push, and slab pull.
Which of the following is evidence of plate tectonics quizlet?
There is a great deal of scientific evidence in support of plate tectonics. Coastlines on opposite continents appear to fit together like puzzle pieces, indicating that they were once joined. Rock and fossils found in South America match those found in Africa, although there is an ocean in between.
How do fossils provide evidence for plate tectonics?
One type of evidence that strongly supported the Theory of Continental Drift is the fossil record. Fossils of similar types of plants and animals in rocks of a similar age have been found on the shores of different continents, suggesting that the continents were once joined.
What is evidence for plate tectonics on Earth quizlet?
There is a great deal of scientific evidence in support of plate tectonics. Coastlines on opposite continents appear to fit together like puzzle pieces, indicating that they were once joined. Rock and fossils found in South America match those found in Africa, although there is an ocean in between.
Which of the following provides evidence that supports the continental drift theory?
The four pieces of evidence for the continental drift include continents fitting together like a puzzle, scattering ancient fossils, rocks, mountain ranges, and the old climatic zones' locations.
What are the 4 types of tectonic plate movements?
What are the major plate tectonic boundaries?
- Divergent: extensional; the plates move apart. Spreading ridges, basin-range.
- Convergent: compressional; plates move toward each other. Includes: Subduction zones and mountain building.
- Transform: shearing; plates slide past each other. Strike-slip motion.
What is the cause of tectonic plate motion quizlet?
convection currents are a process in which the materials inside the mantle heat up and rise to the surface whilst the cooler liquid sinks; as it sinks it then heats up and rises again. This continuous cycle is established: hot liquid rising, cold liquid descending. These currents cause the tectonic plates to move.
Which of the following best describes the theory of plate tectonics?
Which of the following best describes Plate Tectonics? A theory explaining the structure of the Earth's crust and plate movement.
What are the two theories that support plate movement?
The theory of plate tectonics brings together continental drift and seafloor spreading.
What is fossil evidence?
Fossils are preserved evidence of animals, plants, and bacteria that lived in the past. There are many different types of fossils. Trace fossils are footprints, burrows, plant roots, or even feces left behind by once-living organisms.
What best describes the plate tectonics theory?
Plate tectonics is the theory that Earth's outer shell is divided into large slabs of solid rock, called “plates,” that glide over Earth's mantle, the rocky inner layer above Earth's core. Earth's solid outer layer, which includes the crust and the uppermost mantle, is called the lithosphere.
What are the 5 evidences of continental drift?
They based their idea of continental drift on several lines of evidence: fit of the continents, paleoclimate indicators, truncated geologic features, and fossils.
What is the evidence for continental drift quizlet?
Fossils of same creature have been found on different continents that are separated today but were once joined. For example. a 20 cm Mesosaurus reptile could not have swam 3000 miles across and ocean. It's more likely the continents were together and over 40 million years it walked.
What are the three types of plate motion?
Movement in narrow zones along plate boundaries causes most earthquakes. Most seismic activity occurs at three types of plate boundaries—divergent, convergent, and transform.
What are the two main factors in the movement of tectonic plates?
Heat and gravity are fundamental to the process Lithospheric plates are part of a planetary scale thermal convection system. The energy source for plate tectonics is Earth's internal heat while the forces moving the plates are the “ridge push” and “slab pull” gravity forces.
Which of the following is part of tectonic plates?
In plate tectonics, Earth's outermost layer, or lithosphere—made up of the crust and upper mantle—is broken into large rocky plates. These plates lie on top of a partially molten layer of rock called the asthenosphere.
What causes the movement of tectonic plates?
The plates can be thought of like pieces of a cracked shell that rest on the hot, molten rock of Earth's mantle and fit snugly against one another. The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other.
Which of the following explains the theory of plate tectonics?
Plate tectonics is the theory that states that Earth's outer shell is divided into several plates that glide over the mantle. The plates act like a hard and rigid shell compared to Earth's mantle. This strong outer layer is called the lithosphere. Plate tectonics is the modern version of continental drift.
Which type of evidence are fossils?
Key Points. Fossils are the preserved remains or traces of animals, plants, and other organisms from the past. Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today.
What do fossils in sedimentary rock provide evidence of?
The fossil record provides evidence about the history of life and past environments on Earth. The fossil record also shows that Earth's surface has changed over time. the preserved remains or traces of living things. Sedimentary rock is the type of rock that is made of hardened sediment.
What were the 4 main evidence of continental drift?
The four pieces of evidence for the continental drift include continents fitting together like a puzzle, scattering ancient fossils, rocks, mountain ranges, and the old climatic zones' locations.
How is the movement of tectonic plates measured?
Measuring Tectonic Plate Movement movement is measured in centimeters per year. B. The Global Positioning System Scientists use a system of satellites called the global positioning system (GPS) to measure the rate of tectonic plate movement.
Which of these are evidence for continental drift?
The four pieces of evidence for the continental drift include continents fitting together like a puzzle, scattering ancient fossils, rocks, mountain ranges, and the old climatic zones' locations.
What evidence did Wegener find for Pangaea quizlet?
Wegener showed that certain types of rocks on the continents would match with others in another continent. What did Wegener realize about the oldest rocks on the Afircan and South American continents? That they were connected together when the continents were arranged to form Pangaea.
What causes the motion of the plates?
The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other. This movement is called plate motion, or tectonic shift.
Which of the following is responsible for plate movement?
Tremendous heat and pressure within the earth cause the hot magma to flow in convection currents. These currents cause the movement of the tectonic plates that make up the earth's crust.
Which causes the movement of the tectonic plates?
The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other. This movement is called plate motion, or tectonic shift.