Which of the following was not an improvement over another tool for navigation ? a. astrolabe b. celestial navigation c. cross-staff d. compass

B

Explanation:

length of the cultivating season was not a problem of new england agriculture

- "bill clinton ( the 42nd u.s. president, served in office from by low unemployment, declining crime rates and a budget surplus. during clinton's second term, the u.s. economy was healthy, unemployment was low and the nation experienced a major technology boom and the rise of the internet."