Every five enslaved persons would count as three free persons.
Demographically, the Roman Empire was an ordinary premodern state. It had high infant ... No Western city would have as many again until the 19th century. ... To maintain replacement levels under such a mortality regime—much less to ... artificial fertility controls like contraception and abortion were not widely used.
- In 500 BC, Rome was a minor city-state on the Italian peninsula. ... and emperors worried that if these troops were put under the control ... In 340, Rome came into conflict with its former allies, the neighboring ... Rome fought three conflicts with Carthage, known as the Punic Wars, between 264 and 146 BC.
It is important to recognize our humanity because without humanity, people go back to a more primitive and lawless state. Humanity is important because it helps to control society. Without humanity, people go back to a more primitive and lawless state.
The entity integrity rule states that a primary key attribute can be null. Thus the statement is false.
<h3>What is an entity?</h3>
An entity is refer to any object that exists in reality. These entities are Independent in nature. Each row in a table should be a distinct entity, which is ensured by entity integrity.
The entity integrity rule states that a primary key attribute can not be null as it shows unique characteristics of an entity.No primary key value can be null according to the entity integrity constraint because it is needed to identify specific attribute values in relation.
Therefore, the statement is False.
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Answer:
The exchange of goods and services without the use of money
Explanation:
Difficulties with this may be:
Lack of a common measure of value.
Lack of fair exchanges
Lack of double coincidence of wants.
Difficulty in storing value.
