So, the question is asking: why has (over the course of human history) rural settlement declined (and it is suggested that this is connected to humans moving away from the rural areas, to urban areas, rather than human population declining in general:
this process is called urbanization and its major cause is that on the one hand, food in the industrialized societies can be produced more effectively so there is less work on farm, and on the other hand the service sector has increased, which means that there is more work in the cities.
Answer:
Zimbabwe to the south and Zambia to the north
Answer:
The number of immigrant rapidly increased, since the US census chart shown the percentage of region of birth reported, the number of total number between 1900 and 1990, jumped from the population of 10,341,276 to 19,767,316
Answer: 66.5 degrees
Explanation: Well as far as i know below 0 degrees is snow