90% of the time these answer is right
Shushing does not signify silence
A dictionary gives definitions
Answer: unpredictable
Explanation:
One's driving environment changes anytime an individual is driving. It should be noted that the weather conditions, other drivers and ones vehicle can be very unpredictable.
Therefore, in order for drivers to be able to manage risk, it is vital that the person remain alert to the conditions that can leaf to an in the risk level.