Question When driving, knowing what is happening behind you is: Answers Rarely important. Important. Distracting. Explanation To travel safely, it is essential that you know what is happening on all sides of your vehicle at all times. Use your mirrors frequently to help you remain aware of your surroundings. Take a FREE Practice Test Now This questions appears in the following tests: Idaho Knowledge Test Class A , Nevada Knowledge Test Class A , Arkansas Knowledge Test Class B , Missouri Knowledge Test Class B ,