Table of Contents
Which statement best describes the theory of plate tectonics?
Sections of Earth’s continents are in slow constant movement. Explanation: The theory of plate tectonics states that pieces of Earth’s lithosphere are in slow constant motion developed due to convection currents in the mantle. These plates move over the asthenosphere the molten upper portion of the mantle.
What are two statements that support the theory of plate tectonics?
There is variety of evidence that supports the claims that plate tectonics accounts for (1) the distribution of fossils on different continents (2) the occurrence of earthquakes and (3) continental and ocean floor features including mountains volcanoes faults and trenches.
What are 3 things that the theory of plate tectonics explains?
The theory of plate tectonics explains most of the features of Earth’s surface. It explains why earthquakes volcanoes and mountain ranges are where they are. It explains where to find some mineral resources. Plate tectonics is the key that unlocks many of the mysteries of our amazing planet.
Which statement explains why tectonic plates move?
The main driving force of plate tectonics is gravity. If a plate with oceanic lithosphere meets another plate the dense oceanic lithosphere dives beneath the other plate and sinks into the mantle.
Which statement best compares the theories of plate tectonics and continental drift?
Q. Which statement best compares the theories of plate tectonics and continental drift? Plate tectonics and continental drift are two names for the same theory. Plate tectonics proposes that the continents move continental drift proposes the mechanism for how the continents move.
Which statement describes John Tuzo Wilson’s contribution to the theory of plate tectonics?
The answer is D. he observed seafloor cracks similar to existing cracks in the continents. The plate tectonic theory is considered as an improved version of the continental drift theory. The geophysicist John Tuzo Wilson has made contribution that support the plate tectonic theory.
What types of evidence best supports the theory of plate tectonics?
What is the theory of plate tectonics?
What helped scientists develop the theory of plate tectonics?
Evidence that led to the development of plate tectonic theory in the 1960s came primarily from new data from the sea floor including topography and the magnetism of rocks.
How the theory of plate tectonics explains earthquakes?
Earthquakes occur along fault lines cracks in Earth’s crust where tectonic plates meet. They occur where plates are subducting spreading slipping or colliding. As the plates grind together they get stuck and pressure builds up. Finally the pressure between the plates is so great that they break loose.
What does plate tectonic theory predict about the distribution of volcanoes and earthquakes?
What does plate tectonic theory predict about the distribution of volcanoes and earthquakes? They should be evenly distributed throughout the earth. They should occur primarily along plate boundaries.
How does the plate tectonics theory explain the formation of mountains?
Mountains form where two continental plates collide. Since both plates have a similar thickness and weight neither one will sink under the other. Instead they crumple and fold until the rocks are forced up to form a mountain range. As the plates continue to collide mountains will get taller and taller.
Which statement explains why tectonic plates move quizlet?
Heat from Earth’s interior causes currents of hot rising magma and cooler sinking magma to flow moving the crust along with them.
Which statement best describes the theory of continental drift?
| Question | Answer |
|---|---|
| Which statement best describes the theory of continental drift in terms of evidence that the continents move and the mechanism driving their movement | The theory was supported by the evidence and included a mechanism |
Which statement best describes the motion of the plates along these boundaries that causes the earthquakes?
During the process of mountain building earthquakes sometimes occur along continental-continental convergent boundaries. Which statement best describes the motion of the plates along these boundaries that causes the earthquakes? The plates push apart from each other with no subduction.
Which statement describes one of Wegener’s ideas that contributed to the theory of continental drift quizlet?
Which statement describes one of Wegener’s ideas that contributed to the theory of continental drift? The continents were once connected as one landmass. When were Earth’s landmasses first recognizable as the continents we know today?
What is the difference between continental drift theory and plate tectonic theory?
The theory of continental drift suggests that all the land masses on earth were once part of one supercontinent. Plate tectonics is the ability to measure the movement of land masses.
What did John Tuzo Wilson discover?
In 1963 Tuzo Wilson proposed that plates might move over fixed ‘hotspots’ in the mantle forming volcanic island chains like Hawaii. In 1965 he followed this discovery with the idea of a third type of plate boundary – transform faults.
Who proposed plate tectonic theory?
Alfred Wegener
German meteorologist Alfred Wegener is often credited as the first to develop a theory of plate tectonics in the form of continental drift.
Which statement explains the movement of these lithospheric plates?
The plate tectonics theory explains that the plates are moving slowly along the Earth’s surface due to the convection currents in the mantle. Over time the movement of plates results in the changes in the distribution of organisms and the formation of volcanoes and mountain ranges as well as earthquakes.
Which following observations about landforms best supports the theory of plate tectonics?
Which of the following observations about landforms best supports the theory of plate tectonics? Impact craters have been found both on dry land and on the ocean floor. As lava cools on Earth’s surface it forms a variety of igneous rocks. Volcanoes are distributed randomly on every continent.
What did Wegener find that he believed was evidence to support his theory?
Wegener supported his theory by demonstrating the biological and geological similarities between continents. South America and Africa contain fossils of animals found only on those two continents with corresponding geographic ranges.
Which evidence best supports continental drift?
Who are two more scientists that contributed to the theory of plate tectonics and what did they contribute?
Largely because of the efforts of American oceanographer Bruce C. Heezen American geologist Henry W. Menard and American oceanic cartographer Marie Tharp ocean basins which constitute more than two-thirds of Earth’s surface became well enough known to permit serious geologic analysis.
How does the theory of plate tectonics explain the locations of volcanoes earthquakes and mountain belts on Earth?
The theory of plate tectonics describes the motion of Earth’s plates and their role in geological processes such as mountain building earthquakes and volcanoes. … When two continental plates converge neither is subducted. Rather the crust is uplifted to form towering mountain ranges such as the Himalayas.
How does plate tectonic theory explains the Ural mountains separating Europe and Asia?
The Ural Mountains run from north to south through Central Asia separating Europe from Asia. … When the western Siberia plate smashed into the Baltica and North America plate this action pushed up the land to make the Ural Mountains and formed the supercontinent of Laurasia.
What is it called when two tectonic plates collide?
What does a map of global earthquakes and volcanoes tells you?
How does plate tectonic theory explain volcanoes?
On land volcanoes form when one tectonic plate moves under another. Usually a thin heavy oceanic plate subducts or moves under a thicker continental plate. … When enough magma builds up in the magma chamber it forces its way up to the surface and erupts often causing volcanic eruptions.
How does plate movement explain movement at Mt Everest?
PLATE TECTONICS
What is plate tectonic theory
