Police cars have flashing lights and sirens to help keep people safe.
The lights and sounds tell other cars to move aside. Then the police can hurry to help someone quickly.
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Fire trucks carry long hoses and ladders to help put out fires.
Ambulances rush sick or hurt people to the hospital to get better.
Fire trucks carry their own water so helpers can start right away.
Emergency vehicles use loud sirens so other cars know to move over.
The tallest fire truck ladders can reach more than 30 metres up.