Drifting

The hypothesis of continental drift suggests that continents were once joined together in a single landmass called Pangaea and have since drifted apart to their current positions. This theory was proposed by Alfred Wegener in the early 20th century and is supported by evidence such as matching geological formations, fossils, and the fit of continental coastlines.

Alfred Wegener used fossil evidence (matching plant and animal species across continents), geological evidence (similar rock formations and mountain ranges on different continents), climate evidence (glacial deposits and ancient climate patterns that suggested continents were once connected), and fit of continents (the way the continents seem to fit together like a puzzle) to support his hypothesis of continental drift.

Plate tectonics was proven through continental drift using evidence such as the fit of the continents, similar rock formations and fossils on different continents, matching mountain ranges, and the presence of mid-ocean ridges and deep ocean trenches. These pieces of evidence supported the idea that continents were once connected and have since moved apart due to the movement of the tectonic plates.

The West Wind Drift if also know as the ACC

Alfred Wegener's evidence for continental drift included the fit of the continents like puzzle pieces, the distribution of plant and animal fossils across continents, similarities in rock formations and mountain ranges, and evidence of past glaciations in regions that are now tropical. These observations led him to propose the theory of Pangea and the idea that continents were once joined together in a supercontinent.

If one can prove that the sea floor spreads out from the mid oceanic ridges, then logically the continents must be moving apart to accommodate the spreading. Conversely there must also be places where sea floor is being destroyed if the Earth is to stay the same size.

People initially did not believe Alfred Wegener's continental drift theory because he lacked a mechanism to explain how continents could move across the Earth's surface. Additionally, there was insufficient evidence at the time to support his theory. It was not until the development of the theory of plate tectonics in the 1960s that Wegener's ideas gained widespread acceptance.

Cause you started with Pangaea a large super continent which slowly broke apart and each one started drifting. Now plate tectonics is how the collisions occur and when and WHY. WHY are they colliding?, because they have drifted away from each other and are now colliding back together again. And also each individual plate will break and come together again.

Wegener first noticed that it looked like South America coastline could "fit" into Africa's. After that he analysed both their continental shelve's and this showed an even closer fit. The thrid observation that brought about his theory of continental drift was that he found fossils of the same animals (can't remember any names off the top of my head sorry) in both Argentina and east Somalia, Africa.

The animal is the Mesosaurus, a fossil known to live 270 million years ago. This animal was very unlikely to swim across the ocean, so the continents had to conjoined one time in the past. Hope this helps :)

Europe is warmer than it should be given its latitude because of the N.A.D. The North Atlantic Drift is an underwater current that forces warm water from the Carribean, east all the way to the Western end of Eurasia. In addition, the N.A.D. brings with it prevailing winds which lose most of its heat when they cross Portugual. Another example of currency is Lake Michigan. Since water changes temperature slowly, the closer you are to the lake in the summer the cooler it is and the closer you are to the lake in the winter the warmer it is. Therefore, Europe is warmer than it should be due to climactic changes brought about by the N.A.D.

Observer drift is when two people who are observing something start agreeing with each other more and more often. For instance, if two teachers are rating final projects, and one of them rates more strictly than the other and they both know that, then the strict one might start thinking that he or she is too strict and the easy one might think he or she is not strict enough, and so they will change the way they rate things to be more similar. In teaching, sometimes this is a good thing, because you get more consistent grades, but in psychology, where a lot depends on the observer being unbiased, it is usually a bad thing because it tends to sway the results one way or another and corrupt the results of an experiment.

Wegener used the presence of the same fossil species on continents that are now widely separated as evidence for his hypothesis of continental drift. He argued that these fossils could only have come from animals that were able to move, ruling out the possibility of passive transport by ocean currents. This supported his idea that the continents were once connected and later drifted apart.

Paleoclimatic evidence supporting continental drift includes the matching of certain rock formations, geological structures, and fossil distribution on continents now separated by vast oceans. For example, the presence of glacial deposits and coal seams that match across continents provides evidence that these landmasses were once connected. Additionally, the alignment of ancient climatic belts and the distribution of certain plant and animal species further support the theory of continental drift.

Alfred Wegener looked for several lines of evidence to support his theory of continental drift, including the fit of the continents like puzzle pieces, matching geological formations across continents, similarities in fossils and plants, and evidence from paleoclimate data such as glacial deposits.

Wegener showed evidence of similar rock formations and mountain ranges on different continents, evidence of matching plant and animal fossils on different continents, evidence of matching glacial deposits on different continents, and evidence of matching ancient climates on different continents to support his theory of continental drift.

Fossil evidence such as the presence of identical plant and animal species on continents separated by oceans. This suggests that these continents were once connected and later drifted apart.

Pangaea was a supercontinent that existed about 300 million years ago. The theory of continental drift suggests that Pangaea split apart over time due to the movement of tectonic plates, leading to the current arrangement of continents. This movement continues today, with the plates shifting slowly across the Earth's surface.

Seafloor spreading and continental drift are both processes associated with plate tectonics. They both involve the movement of Earth's lithospheric plates. Seafloor spreading is the process where new oceanic crust is formed at mid-ocean ridges, while continental drift is the theory that continents have moved and are still moving over Earth's surface.

The discovery of seafloor spreading and magnetic striping on the ocean floor in the 1960s provided compelling evidence for Alfred Wegener's theory of continental drift. This process showed how new oceanic crust is formed at mid-ocean ridges and helps move the continents apart, supporting the idea that continents are not fixed but can drift over time.

Genetic drift occurs due to random fluctuations in allele frequencies in a population, especially in small populations. It can lead to certain alleles becoming more or less common over time purely by chance, with no selective pressure involved. This process can result in the loss of genetic variation and can have significant effects on the gene pool of a population.

Yes, the case of the Mesosaurus does support Wegener's theory of continental drift because Mesosaurus however were-- as stated very well, A non-pelagic freshwater species from the Permian limited to a narrow range in the south east tip of South America and South Africa. In my opinion we cannot totally rule out "Accidental" ocean going land and freshwater as examples do exist (e.g Central and South American land tortoises to and from Galapagos) but the gravity of the drift theory favors conjoint land else narrow very narrow seaways for which rafting or limited range free swimming could be a mechanism of spreading breeding populations. My point being we can not exclude the possibility of animals being able to cross minor bodies of water because we have more modern examples for which swimming or rafting on debris were plausible. Egrets are a flying example of how species may be distributed across large bodies of water and so aren't perfect evidence. Common egrets were blown over from Africa to South America late in the 1800s in a massive storm system. Through replication and migrations they have reached the Piedmont of the Carolinas , central Alabama-Georgia and western Tennessee.

Genetic drift occurs when random events cause certain alleles to become more or less common in a population. This can happen due to factors like population bottlenecks or the founder effect, where a small group of individuals carries a subset of the genetic diversity of the larger population. Over time, genetic drift can lead to changes in allele frequencies and reduce genetic variation within a population.

Yes, the plate tectonics theory developed from the earlier continental drift theory. The continental drift theory, proposed by Alfred Wegener in the early 20th century, suggested that continents were once joined together and drifted apart. Plate tectonics, developed in the mid-20th century, expanded on this by incorporating the movement of Earth's lithosphere plates and explaining the processes driving continental drift.

1. Fossil similarities across continents.
2. Matching geological formations across continents.
3. Alignment of mountain ranges across continents.
4. Distribution of ancient climates and glacial deposits.