Geologists found fossils of similar marsupials from the same time period across South America, Africa, Antarctica, India and Australia. What theory is supported by this discovery?(1 point)
Responses
The processes happening today are the same processes that have occurred in the past.
The processes happening today are the same processes that have occurred in the past.
Those continents were once a part of one supercontinent.
Those continents were once a part of one supercontinent.
A vast land bridge once connected those continents.
A vast land bridge once connected those continents.
Early marsupials were strong swimmers.
Early marsupials were strong swimmers.
The theory supported by this discovery is that those continents were once a part of one supercontinent.
i need 1 only
The theory supported by this discovery is that those continents were once a part of one supercontinent.
At which type of boundary is new oceanic crust created?(1 point)
Responses
a convergent boundary
a convergent boundary
a transform boundary
a transform boundary
a subduction zone
a subduction zone
a divergent boundary
At a divergent boundary, new oceanic crust is created.
The theory supported by the discovery of similar marsupial fossils from the same time period across South America, Africa, Antarctica, India, and Australia is that those continents were once a part of one supercontinent. This theory suggests that these continents were once connected and over time, they drifted apart to their current positions.
To arrive at this theory, geologists would have analyzed the distribution of the fossils and compared them across different continents. They would have looked for similarities in the morphology and characteristics of the marsupial fossils, as well as examined the geological evidence of how these continents have moved and separated over millions of years.
Through this analysis, they would have found evidence supporting the idea that these continents were once joined together in a single landmass, known as a supercontinent. This discovery aligns with the theory of continental drift, which proposes that the Earth's continents have moved and shifted over time due to plate tectonics.
To confirm this theory, geologists may have also examined other geological features, such as the matching rock formations and sedimentary layers across these continents. Additionally, they may have studied the distribution of other types of fossils and the similarities in their patterns across these landmasses.
Overall, the discovery of similar marsupial fossils across these continents supports the theory that the continents were once part of one supercontinent, and this theory is known as continental drift.