How did the invention of the astrolabe help Vasco da Gama make his voyage to India? A.
It allowed him to navigate the seas using the sun and stars.
B.
It allowed him to create a map to help other sailors return to Asia.
C.
It allowed him to use the winds to return from longer journeys.
D.
It allowed him to scare off anyone who would try to attack his ship.

Answer : A. It allowed him to navigate the seas using the sun and stars

Explanation: Astrolabe helped Vasco De Gama to navigate the unknown territories. it was a tracking device that helped him gauge the latitudes and longitudes, it also helped him measure time on the sea, seeing the movements of the sun across the horizon. ( he was then able to return to india )

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