only in so far as many areas under control of the Islamic Empires had once been Roman province such as North Africa and much of the Upper Middle East
Answer: unreliability
Explanation: Some of the problems that determine the quality of an experiment are reliability and validity.
Reliability considers the consistency of the experiment. In the example above, the result of the second sample is inconsistent with the result of the first sample, making Watt's research unreliable. That is, it does not reflect the ratings of a larger population. This problem can be solved by increasing the sample size, such that the average ratings are more reflective of a wider audience.
Validity considers the accuracy of the experiment. A lack of reliability of an experiment will likely make the result invalid as well, but this is not always the case.
A Hebrew man named Abraham is the founder of Judaism
Answer:
The first civilizations formed on the banks of rivers. ... Rivers were attractive locations for the first civilizations because they provided a steady supply of drinking water and made the land fertile for growing crops.
