Answer:
A limited amount of records survived to shine light on this time period
Explanation:
The difference is that duties are required by law; responsibilites are voluntary (by choice). Citizens should fulfill both because for a democracy to be successful, all citizens should be active within the community, or be effective atleast.
It seems like that the answer is located right after the question
What was the "car culture" of the 1950s? is the question and the info after is the answer.