Answers:

• Its important because it is help people understand that signals. They provide clues to understanding experiences by conveying recognizable meanings that are shared by societies.

• Safety signs and symbols are important safety communicating tools, they help to indicate various hazards that present in plant site or workplace. At the same time, they warn workers to always keep watching out for those hazards by giving required information and safety instructions.

• Health and safety signs are one of the main means of communicating health and safety information. They can be found in places such as workplaces, nurseries, schools and offices. Signs provide information and warnings about hazards or threats which are essential to safety.