Answer:
The Mesopotamian civilization developed between the rivers Tigris and Euphrates. That is where it got its name since Mesopotamia means “between rivers”. It was located in an arid zone, but thanks to the irrigation canals which they built there was an important economic development in the area.
Explanation:
The correct answer is C. Theory.
Answer:
There is strong resistance to the extinction when performance has been maintained with a variable schedule of reinforcement
Explanation:
variable ratio schedule of reinforcement occurs when the response has been reinforced after several unpredictable responses. It creates a high rate of steadiness in the response in the schedule. Lottery and gambling are a good example of such type of reinforcement.
In an experiment when food is supplied to a rat after one break then after four breaks after one break, again and again, it is the variable-ratio schedules
The Nile River, the longest river in the world, was considered the source of life in ancient time, as well as today in Egypt. Because of the Nile, people could live near there which was bordered by deserts on the east, south, and west, along with the Mediterranea Sea on the north. The Nile floods were predictable every year. The flooding started in July following the rain season in central Africa. The Nile provided valuable moisture and silt, which was deposited on the fields as the waters reached. These were favorable for farming. The Egyptians also depended on the Nile as their main transportation route. Therefore, many cities developed along the river owing to its importance of farming and transportation
