“Sound plays an important role in our lives”. Give two points in support of this statement.

Sound can be used to alert us in emergencies. 2. Sound can also be used to help blind people navigate the world better. I’m sorry if these horrible but I tried lol

First job out of college was in an industrial manufacturing setting.  Was told by plant engineer to walk around, get used to normal sounds.  He stressed anything "abnormal" is a noise more so than a sound. Report abnormalilies to supervisor immediately!!  So essentially sounds are giving us warnings something is abnormal.Sounds also provide feedback.  Say you are performing an experiment, requires boiling water to sanitize.  Start the burner under a vessel, go on about other preparations.  Sound of water boiling will trigger setting a timer for how long to let it boil.Get off work, pleasant music, nature sounds can help us decompress from a stressful day on the job.

Hope some of these give you impetus to think of other bullet points, sounds good to me.  !!

Explanation:

B) movement of materials into and out of the cell