I believe the answer is theoretical model
A theoretical model is the foundation that could be held to support a certain theory for a certain research or study.
From the example above, the study is build on a foundation that both behavior and environmental factor could affect the subjects' overall health
In the 1920s, the danger of buying stock on credit was that if the stock dropped, borrowers have to make up the difference.
When the stock dropped, basically the borrowers losing an amount of value of his assets. But since he bought the stock before the price was dropped, he had to make up the difference
Answer: He made a risky gamble
Explanation: John Law made a bet with Lord Londonderry in August 1719 that East India Company stock would weaken over the following year. He lost the bet. It was this wager and not the collapse of the Mississippi bubble that ruined Law. On 28 December 1720, he fled France disguised as a woman and died in Venice nine years later, a poor man.
Answer:
Sudden death
Explanation:
Based on the information provided by the question, the type of relationship termination portrayed is Sudden death.
