Why does the narrator refer to the bodies of water as "a similar environment"?

How does the process of constructing a historical narrative differ from the process of creating a timeline

What was true about sharecropping? a. landowner provided free tools and seeds.b. workers could leave the land if they failed to make money.c. landowners often took advantage of workers.d. workers received ownership of the land they farmed after a set number of years.

What is the name for the main idea behind the settling of western lands by americans in the early-1800s?