Answer:
It is unanswerable
Explanation:It asks an opinion question which cannot be answered with fact.
For Copernicus, I think it was On the Revolution of the Celestial Spheres. I think For Newton it was Philosophiæ Naturalis Principia Mathematica.
Answer:
In a presidential system, political and administrative powers are divided between the executive, legislative and judicial branches. In a parliamentary system, Parliament is sovereign and executive authority
Explanation:
Both because you need both farm and and transportation