Question 25: you come upon a scene where someone seems to be hurt. why should you check the scene before approaching the victim?

I Believe the answer is: 

To find out what happened and how many victims there are (to evaluate whether you are able to give help alone or need other people)

, to see if there are any bystanders who can help, (more than one person would improve the survavibility of the victi

 and to ensure your own safety (make sure that the causes of the injury is still there, such as gas leak, fire,  or criminal offender)