Help asap How did engineers at Prince Henry’s navigation school influence the compass?

They improved upon it.
They invented the astrolabe.
They used cartography on it.
They developed the caravel.

Describe the technology advancements that lead to explorers being able to sail great distances. [[ps: doesn't explain where. i am only speculating it's in europe.

Which of the following best describes the 1957 events at central high school in little rock, arkansas? -governor faubus resisted the school’s integration with national guard troops, and president eisenhower sent federal troops to enforce integration.-under governor faubus, little rock police first fought, then enforced, the order to integrate the school.-president eisenhower sent national guard troops to resist the school’s integration, but governor faubus obtained a court order to dismiss them.-president eisenhower and governor faubus worked together to make the integration process run as smoothly as possible.

Which communities brought about the rise of the first politician? a.anthropological b.neolithic c.hominids d.geologist