They were made of sun-dried mud bricks in ancient Sumeria.
The correct answer is negative
Explanation: Negative reinforcement is a term described by BF Skinner operant conditioning theory. In negative reinforcement, a response or behavior is reinforced by stopping, removing or avoiding a negative result or aversive stimulus.
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Aversive stimuli</em> tend to involve some kind of discomfort, whether physical or psychological. Behaviors are negatively reinforced when they allow you to escape aversive stimuli that are already present or allow you to avoid aversive stimuli completely before they happen.
No, because the 3/5 comprimise says that slaves (for representation and tax purposes) were only 3/5 of a person. Today of course we know that blacks are a full person. However, at the time, it was useful and a good comprimise when the issue of slaves was split like it was in the country.
