Why do many south americans move from rural to urban areas? irrigation mechanized agriculture plantation farming subsistence agriculture

Need why is the copernican revolution significant? check all that apply. a/ few advancements in scientific knowledge were made. b/ scientists discovered new evidence to support their theories. c/ scientists discovered that old interpretations of data was incorrect. d/ scientists used observations and mathematical data to solve problems in new ways. e/ all theories developed during the time period were disproved by modern science.