Which of the following was not a major advantage of copernicus's sun-centered model over the ptolemaic model? it made significantly better predictions of planetary positions in our sky. it offered a more natural explanation for the apparent retrograde motion of planets in our sky. it allowed calculation of the orbital periods and distances of the planets.

It made significantly better predictions of planetary positions in our sky

Explanation:

Of the following statements the one which was not a major advantage of Copernicus's Sun-centered model over the Ptolemaic model is that it made significantly better predictions of planetary positions in our sky. Both the model made similar predictions of planetary position in our sky. In fact the Ptolemaic model was even better than the Copernicus's heliocentric model when it came to positioning of planets.  

for e2020. the answer would be some directions from the mountain range so we can find mt. whitney. to locate which direction is north, you should use a   compass. this would not only find mt. whitney, but also becuase of this long paragraph you would get points because it's not like anyone actually reads your work becuase once they read the first sentence it sounds dumb enough to not read becuase i'm not good at answering this but the answer is compass for your benefit.

for e2020 ; -;