why should a circular saw that does not have an upper blade guard never be used?\nthe safety features will…

why should a circular saw that does not have an upper blade guard never be used?\nthe safety features will be disabled.\nthe trigger lock will not work properly.\nthe exposed blade poses a danger.
Answer
Brief Explanations:
The upper blade guard on a circular saw protects users from the exposed and rotating blade. Without it, the blade is unobstructed and can easily cause serious injury.
Answer:
The exposed blade poses a danger.