____________________________________________ is the instigation of sleep

Which of the following are advantages of the personnel digital ionization dosimeter?

1. Instant access to reports 2. No waiting time for mailing dosimeters 3. Lightweight and durable 4. Can be dropped or scratched with little chance of harm to the device a. 1, 2, and 3 only b. 1, 2, and 4 only c. 2, 3, and 4 only d. 1, 2, 3, and 4

When you have a question about software while you are using it, you can refer to the software manual or use online _______.  

Fill in the blank(s) with the appropriate word(s).