It is false that primary sources are the only sources that historians use, since it is important to consult the works of other writers and historians to get an idea of how events in history have played out. Historians usually use a combination of secondary and primary sources.
(births/1,000 person's/year) stands at 20.05 this means there's about 20 babies born each year for every 1,000 people.
The answer would be the fatimids
Answer:
Specialization Leads to Economies of Scale
Explanation:
As labor is divided amongst workers, workers are able to focus on a few or even one task. The more they focus on one task, the more efficient they become at this task, which means that less time and less money is involved in producing a good.