Arrange the four parts P, Q, R and S between A and B in order to make sensible story or a sequence of a story.
A: Firefighting is one of the most important emergency services in community. Firefighters battle fires that break out in homes, factories, office buildings, shops, and other places. Firefighters risk their lives to save people and protect property from fires.
P: Before the advent of modern firefighting techniques, fires often destroyed whole settlements. When a fire broke out all the people in the community rushed to the scene to help. As cities and towns grew larger, volunteer and paid firefighting groups were organized.
Q: Firefighting services have a number of different names. In some countries, they are called fire departments or fire brigades. In other countries, the local
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