Answer:
Scientists use the geologic time scale to illustrate the order in which events on Earth have happened. ... They used relative dating to divide Earth's past in several chunks of time when similar organisms were on Earth. Later, scientists used absolute dating to determine the actual number of years ago that events happened.
In this circumstance one should revise the hypothesis and develop a new experiment to test it.An example could be the theory of Agraham Gottloeb Werner that all rocks were precipitated from water including not just sedimentary rocks but also volcanic, plutonic and metamorphic rocks. The more the earth was studied, especially by James Hutton in Scotland, the more it became obvious that granites for example were deposited in a molten state, thus disproving that hypothesis or theory.
At one point in the early history of the earth, all the continents where merged together as a mega continent called "Pangea". so there actually was no ocean between the land, allowing for dinosaurs to roam freely across the entire land mass. when the land masses split up, the fossils went with them :)
Pretty sure it’s air pollution
The human settlements hierarchy is as follows:
- An ecumenopolis is a theoretical construction in which the entire area of Earth that is taken by human settlements, or at least, that those are linked so that to create an urban areas so big that they can shape an urban continuum through thousands of kilometers.
- A megalopolis is a group of conurbations, consisting of more than ten million people each.
- A conurbation is a group of large cities and their suburbs, consisting of three to ten million people.
- A metropolis is a large city with it's suburbs, consisting of multiple cities and towns.
- A large city is a city with a large population and many services.
- A city has many services, but not as many as the large city.
- A large town is a town with population of 20,000 to 100,000 people.
- A town has a population of 1,000 to 20,000 people.
- A village is a human settlement or community that is larger than a hamlet but smaller than a town.
- A hamlet has a very small population, very few services, and only few buildings.
- An isolated dwelling has only 1-2 buildings.
