Well the cause of a certain event in history will mean something happens.
The effect is the result of the event happening
For example. With 9/11 the cause was the twin towers collapsing. The effect would have been thousands of people dying as the result of the planes being highjacked
The atomic bomb
Hope this helped
If was a incident that happens in Boston Massachusetts on March 1770 a British soldier was shot and killed the people fight
Answer:
They can show if the place is open or closed it also tells you what time it close and open.
Explanation:
