Answer:
•caravels
•astrolabe
•magnetic compass
Step-by-step explanation:
all three of these inventions allowed rhe europeans to engage in exoration in order to achieve the three g's and create a spice route to india. the caravel was a very navigable 2 to 3 front ship that allowed them to navigate the ocean easier, the metal compass allowed them to use something other than astrology to navigate to the new world, and the astrolabe made better astronomical measurements furthermore contributing to navigation