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2021-05-14

What are the roles of seafloor spreading and subduction in plate tectonics?

What are the roles of seafloor spreading and subduction in plate tectonics?

Seafloor spreading creates new crust. Subduction destroys old crust. The two forces roughly balance each other, so the shape and diameter of the Earth remain constant.

Which statement describes the relationship between seafloor spreading and continental drift?

Which statement describes the relationship between seafloor spreading and continental drift? As the seafloor spreading occurs, the continents do not move. As the continents move, they pull the seafloor with them.

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What statement most accurately describes the theory of seafloor spreading?

What statement most accurately describes the theory of seafloor spreading? a. Oceanic crust continuously forms across the seafloor and is moved by subduction zones toward mid-oceanic ridges where it is consumed.

Which statement best describes the theory of plate tectonics?

Answer: The statement that best describes the theory of plate tectonics is the one that says that sections of Earth’s continents are in slow constant movement.

Which plate does not appear in both hemispheres?

Indo-Australian

Which two places do divergent boundaries occur?

Divergent boundaries are occur in oceans and lower mantle

Which plate forms a boundary with the African plate?

Answer to the question is: The plate which forms a boundary of the African plate is Antarctic Eurasian and South American. According to various scientific research and evidences, the world is divided into seven techtonic plates out of which the African plate is the largest plate

Which events are associated with convergent boundaries?

Convergent plate boundaries are locations where lithospheric plates are moving towards one another. The plate collisions that occur in these areas can produce earthquakes, volcanic activity, and crustal deformation.

How many plates touch the African plate?

There are 4 major tectonic plates and 2 smaller plates that touches the African plate.

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What type of boundary is formed between Eurasian plate and Indian plate?

convergent plate boundary

What are the three main plate boundaries and describe the characteristics of each boundary?

There are three main types of plate boundaries:

  • Convergent boundaries: where two plates are colliding. Subduction zones occur when one or both of the tectonic plates are composed of oceanic crust.
  • Divergent boundaries – where two plates are moving apart.
  • Transform boundaries – where plates slide passed each other.

How did you classify the three types of boundaries?

There are three kinds of plate tectonic boundaries: divergent, convergent, and transform plate boundaries. This image shows the three main types of plate boundaries: divergent, convergent, and transform. A divergent boundary occurs when two tectonic plates move away from each other.

What are the 5 types of plate boundaries?

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.

How do humans benefit from plate tectonics?

Plate activity on Earth has helped to regulate the level of carbon dioxide over the eons. The same weathering that pulls nutrients from mountaintops down into the oceans also helps to remove carbon dioxide from the atmosphere

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What are the evidences for plate tectonics?

Modern continents hold clues to their distant past. Evidence from fossils, glaciers, and complementary coastlines helps reveal how the plates once fit together.

What are three good things that plate tectonics provide for humans?

Three good things that plate tectonics provide for humans are: fertile soils, ore deposits and fossil fuels.