This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

[EX Q]: After 1870, the new railroads across the Plains brought hunters who killed off almost all the bison for their hides. The railroads offered attractive packages of land and transportation to European farmers, who rushed to settle the land. They (and Americans as well) also took advantage of the homestead laws to obtain free farms. Land speculators and local boosters identified many potential towns, and those reached by the railroad had a chance, while the others became ghost towns. In Kansas, for example, nearly 5000 towns were mapped out, but by 1970 only 617 were actually operating. In the mid-20th century, closeness to an interstate exchange determined whether a town would flourish or struggle for business.
[EX A]: after about what year did railroads bring hunters to the great plains?

[EX Q]: The epidermis is typically 10 to 30 cells thick; its main function is to provide a waterproof layer. Its outermost cells are constantly lost; its bottommost cells are constantly dividing and pushing upward. The middle layer, the dermis, is 15 to 40 times thicker than the epidermis. The dermis is made up of many components, such as bony structures and blood vessels. The hypodermis is made up of adipose tissue. Its job is to store lipids, and to provide cushioning and insulation. The thickness of this layer varies widely from species to species.
[EX A]: What is the typical thickness of the epidermis?

[EX Q]: Following the '69 season, the club posted winning records for the next few seasons, but no playoff action. After the core players of those teams started to move on, the 70s got worse for the team, and they became known as "The Loveable Losers." In 1977, the team found some life, but ultimately experienced one of its biggest collapses. The Cubs hit a high-water mark on June 28 at 47–22, boasting an 8 1⁄2 game NL East lead, as they were led by Bobby Murcer (27 Hr/89 RBI), and Rick Reuschel (20–10). However, the Philadelphia Phillies cut the lead to two by the All-star break, as the Cubs sat 19 games over .500, but they swooned late in the season, going 20–40 after July 31. The Cubs finished in 4th place at 81–81, while Philadelphia surged, finishing with 101 wins. The following two seasons also saw the Cubs get off to a fast start, as the team rallied to over 10 games above .500 well into both seasons, only to again wear down and play poorly later on, and ultimately settling back to mediocrity. This trait became known as the "June Swoon." Again, the Cubs' unusually high number of day games is often pointed to as one reason for the team's inconsistent late season play.
[EX A]:
During what decade did the Cubs become known as "The Loveable Losers"?