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A primary source tells you about a certain event that happened in the past and it's from that event. When studying historical events, historians want their information to be precise and correct. primary sources are firsthand, contemporary accounts of a certain event that was recorded by somebody who witnessed or experienced that event. Primary sources includes the original stuff and it's very important.
The United Nations' sole function is to provide humanitarian aid around the world.
Different map projections are necessary because they were created to address different situations. Cartographers are the professionals that elaborate map projections. They do it in order to have a visualization of the Earth Surface.
We can’t have just one map projection because there is non-single map that creates a perfect image of the Surface of the Earth. That is why cartographers need various maps to overcome the problem of distortion. It could be areas distortion or distances distortions. Different maps help to meet distinct needs.
For the answer to the question above, the demand for manufactured goods fostered the spread of inland trade, as did increasing industrial specialization in the different British regions. Daniel Defoe illustrated this point by describing the multiple provenances of an affluent man's suit of clothes. I hope the answer will help you.
Answer:
the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life
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