Answer:
People wanted to measure time: They mad sundials
People needed clear time tables: They made time zones
Answer:
Classification
Explanation: this is breaking down broad subjects into more manageable parts. You can make things to be in smaller and more specific points or parts for better understanding. A text can be broken down into topics, then subtopics and even smaller topics created from the subtopic for better understanding.
Exposition
is your answer :D
