The astrolabe, a portable device used by sailors to help them find their way. By measuring the distance of the sun and stars above the horizon, the astrolabe helped determine latitude, an important tool in navigation.
Suppose you earned extra money by having a part-time job. You open up a bank account in order to save your money. Your body acts similar to a bank account—you can “deposit” and “store” energy.
Explanation:
The answer is A: It allowed them to more accurately
