Answer:
The migration during the 20th century has been mostly from less-developed (poor) countries to more-developed countries.
Explanation:
A is correct because during the 20th century, with the migration policies being made much more friendly and open, the people from the less-developed countries where the living conditions were terrible, to the more-developed countries where they could have much better lives.
B is not correct because it is actually the opposite, where people from different religious beliefs than those of the people of the county of their choice, have migrated and made much more diverse societies.
C is not correct because such migration has not been recorded so far.
D is not correct because the people from more-developed countries usually only visit the less-developed countries as tourists, but very very rarely migrate to them as they are aware of the risks and bad living conditions.
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As defined by the National Park Service, a Cultural Landscape is a geographic area, including both cultural and natural resources and the wildlife or domestic animals therein, associated with a historic event, activity, or person, or that exhibits other cultural or aesthetic values.
The correct answer is - when an event occurred in years.
The absolute dating tells us exactly when something happened in years. By using the carbon 14 technique it can be very accurate to about 40,000 years ago, and also by studying the rocks, it can be accurate to an incredible 200 million years backwards. This is of great importance for the fields of geology and paleontology, as well as all the sciences that use the information's from them for their own studies. This method allows the scientists to be able to put things into the right order as to when they happened in the geological history, thus creating a very accurate picture of the order of the events that took place in the past of our planet.
