Why is an array or group of hydrophones more useful than a single hydrophone?

Eating while you drive a.increases your risk of being involved in a collision b.is only risky with heavily packaged foods c.should only be done with food that can be handled easily

In expanded academic asap and other periodical databases, it’s best to put your exact phrase

Which sentence is correctly punctuated? a. i haven’t found a new job, and i don’t plan to look for one until i have to. b. my work is piling up—day to day—and i can’t seem to get caught up. c. i know things could be worse (they have been in the past).