I believe the answer is Are the main factor in... hope this helps
American Workers began to work more and more in factories
The answer is: However, the marine chronometer finally made accurate maps possible, creating safe, rapid, and efficient shipping routes.
This is because it addresses the focus on international trade and opposes the counterclaim.
When readers make an inference based on a story or essay, they reach a conclusion based on hints or clues. These hints or clues are also commonly known as “context clues” and they help provide background information on a topic that may be unfamiliar to a reader.
