3). he had explored the world
4). Because they r all they need
The answer is D. <span>the South China Sea and the Indian Ocean</span>
Answer: The impact of the Great Depression on the rich and poor
Explanation: A cohort is a group of individuals who experienced or share a common event in a specific time period. The cohort effect is used to describe various characteristics of an area of study such as the incidence of a characteristic over time among subjects who are defined by some shared life experience such as the Great Depression.
The Great Depression may have affected the poor and the rich differently but the events leading up to, during and the aftermath is an experience that was shared by both the rich and poor and this shared experience may influence the entire group's opinions and decisions for several years.
