Most solids, like most liquids, expand when heated and contract when cooled. To allow for this, roads, sidewalks, and railroad tracks are constructed with spacings between sections so that they can expand during the hot weather. If roads, sidewalks, and railroad tracks were not constructed with spacings between sections,

Questions below are based on the passage shown below.     Arsonists are persons who set fires deliberately. They don’t look like criminals, but they cost the nation millions of dollars in property loss and sometimes loss of life. Arsonists set fires for many different reasons. Sometimes a shopkeeper sees no way out of losing his business and sets fire to it to collect the insurance. Another type of arsonist is one who wants revenge and sets fire to the home or shop of someone he feels has treated him unfairly. Some arsonists just like the excitement of seeing the fire burn and watching the... Show more

Questions below are based on the passage shown below.    

Arsonists are persons who set fires deliberately. They don’t look like criminals, but they cost the nation millions of dollars in property loss and sometimes loss of life. Arsonists set fires for many different reasons. Sometimes a shopkeeper sees no way out of losing his business and sets fire to it to collect the insurance. Another type of arsonist is one who wants revenge and sets fire to the home or shop of someone he feels has treated him unfairly. Some arsonists just like the excitement of seeing the fire burn and watching the firefighters at work; arsonists of this type have been known to help fight the fire.    

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