Answer:
better maps show the directions of ocean currents and lines of latitude. Inventions like the astrolabe and magnetic compass improve navigation.
Explanation:
I guess that it was the fact that people would finally be able to communicate and understand one another. Hope this helps!
One is to absorb all wavelengths of visible light aside from the perceived color.
Another one would be the rate of flow of the carrier is carefully controlled to give the clearest seperation of the components in the sample.
The correct answer for the question