IV. Read the following passage and do as direct. (17-22)
The compass is an incredible invention that changed the way people travel. It was invented in ancient China around the 2nd century BCE. The compass uses a magnetic needle that points to the Earth's magnetic field, helping sailors find their way. Before the compass, sailors had a hard time knowing which direction to go. They relied on stars and landmarks, which weren't always reliable. With the compass, sailors could navigate more accurately and explore new places. The compass played a crucial role in the Age of Discovery when explorers like Christopher Columbus used it to find new lands. Even today, we still use compasses for navigation and exploration.
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