By not letting her (Rosa Parks a black women) sit where ever she wanted on the bus showed some Whites and most Blacks enough is enough it's time for change and people are willing to do whatever it takes to receive equality! Hope this helps!!
Answer:
Social change can cause conflict within and between societies. Social change can cause a cultural lag which leades to conflict. A main conflict is between youth and parent, which is a result of social change.
During the 20th century there was war. This includes World War I. The wars would cause poverty in familes due to the high demand of food and supplies to soldiers overseas. This led to other families fighting for survival.
England.
Between the two nations, there had been much conflict over this channel, England being the one to hold control of it before hand.
Hope this helps!