Quick Answer: What Biological Evidence Supports Plate Tectonics Theory?

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.

What biological evidence supported or supports Wegener’s theory of plate tectonics?

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.

What evidence exists to support the theory of plate tectonics quizlet?

Earthquakes and volcanic activity are also evidence of plate tectonics. Divergent and convergent boundaries are both prone to frequent volcanic activity.

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What are the four lines of evidence that support plate movements?

They based their idea of continental drift on several lines of evidence: fit of the continents, paleoclimate indicators, truncated geologic features, and fossils.

Why was mosasaurus a significant piece of evidence that supports plate movement?

Mesosaurus was significant in providing evidence for the theory of continental drift, because its remains were found in southern Africa, Whitehill Formation, and eastern South America (Melo Formation, Uruguay and Irati Formation, Brazil), two widely separated regions.

What evidence do scientists use to support the continental drift theory?

Answer: The evidence for continental drift included the fit of the continents; the distribution of ancient fossils, rocks, and mountain ranges; and the locations of ancient climatic zones.

Which of the following is the most recent evidence of plate tectonics?

Volcanic activity and sea-floor spreading at the mid-ocean ridges are the most recent evidence of plate tectonics.

What evidence exists to support the existence of Pangaea?

The rock formations of eastern North America, Western Europe, and northwestern Africa were later found to have a common origin, and they overlapped in time with the presence of Gondwanaland. Together, these discoveries supported the existence of Pangea.

How does Hawaii show evidence of tectonic activity?

This upwelling of molten rock, known as a “hot spot,” creates volcanoes that spew out lava (magma that reaches Earth’s surface). The Hawaiian Islands were literally created from lots of volcanoes —they’re a trail of volcanic eruptions. Hot-spot volcanism can occur in the middle of tectonic plates.

Which evidence provides support for the motion of Earth’s tectonic plates being predictable?

Sea Floor Magnetism. Stripes of magnetic material in the seafloor provide strong evidence for tectonic theory. The stripes alternate between those with magnetic material orientated toward magnetic north, and those oriented in the opposite direction.

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What proves the movement of the tectonic plates?

Geologists have hypothesized that the movement of tectonic plates is related to convection currents in the earth’s mantle. 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.

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.

What are the two theories that support plate movement?

The theory of plate tectonics is what brings together continental drift and seafloor spreading. Plates are made of lithosphere topped with oceanic and/or continental crust. The plates are moved around on Earth’s surface by seafloor spreading. Convection in the mantle drives seafloor spreading.

What is Alfred Wegener theory?

In the early 20th century, Wegener published a paper explaining his theory that the continental landmasses were “drifting” across the Earth, sometimes plowing through oceans and into each other. He called this movement continental drift.

What evidence proved that South America Africa India and Australia were once covered by glaciers?

What evidence proves that South America Africa India and Australia were once covered by glaciers Brainly? Glacial deposits and scratches in the bedrock from an ice sheet match in distant regions. Icy glaciers covered South America, Africa, Antarctica, and Australia as one supercontinent over the North Pole.

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