The mesosphere is the answer
Afghan refugees living in Iran to escape terrorism - Push factor
Bangladeshi migration to India due to flood - Push factor
Admission to university in England - Pull factor
Migration to Canada for a better lifestyle - Pull factor
Migration to America to escape religious persecution - Push factor
Entrepreneur moving to Singapore for a better business opportunity - pull factor
Plate Tectonics, that would be the answer <span />
Answer:
Supplied the new theory of the universe that combined the work of Copernicus, Kepler, and Galileo.
Explanation:
Newton´s Principia, was the book of Issac Newton that settled down the principles of mechanics, over there the author explain his three laws of movement that are similar in Earth, but also in the universe.
In this book was the beginning of the gravitational force, that latter Einstein will support.
