Answer:
The rise and spread of nationalism gave people a new sense of identity and also led to an increased sense of competition among nation-states.
Explanation:
location, place, human-environment interaction, movement and region.
Our current knowledge lets us see flaws in the Ptolemaic model of the universe. ... the most obvious flaw is how Ptolemy tried to explain retrograde motion. that is the apparent backward shift of the planets against the stars behind it.