Answer:
naturalistic observation.
Explanation:
Cal believes that a larger percentage of a city’s population will engage in public displays of affection in highly populated cities due to feelings of anonymity when an individual is among a lot of other people. He rides a bus in densely populated New York City for five hours straight, watches the bus riders’ interactions with each other, and unobtrusively counts the number of couples who are holding hands, hugging, or kissing. He then does the same in the sparsely populated city of Rock Falls, Iowa. The research method Cal used is known as naturalistic observation.
As we know that Naturalistic observation is a research method which is used commonly by psychologists and other social scientists. in this technique, it involves observing subjects in their natural environment.
Because, slavery is the act of owning another, to slavery abolishers it was unconstiutional and ungodly. They sought and fought for equal rights and freedom for their bretherns'.
After the death of Marcus Aurelius, the Roman empire slowly started to decline. Potential new emperors began to focus on pleasing the rich Patricians at the expense of the poor plebeians . The resulting decadence was just one reason for the fall of the empire.
(It needs to be pointed out that as the question seems incomplete and lacks more context, the answer might not meet the its standards).
The answer is limit government spending
