Click on the boxes to indicate the sequence of steps you should take upon arriving at the scene of an accident.   first: second: third: fourth: -first aid -call ems (  emergency medical services ) -check if victim is conscious or unconscious -check scene for hazardous conditions

Explanation:

The first thing that must be done when you visualize an accident with victims, is to observe the degree of danger that the accident site presents. That's because it is not advantageous for you to put yourself in danger when you are going to help someone, so first you need to evaluate this.

The second thing that must be done is to locate the victim and observe whether the victim is conscious or unconscious, because these will be necessary information for when you are going to perform the third step, which is to call the emergency service, so that a specialized team can help the victim in the best possible way. Lastly, it is important that you perform first aid, as they can prevent the victim from suffering further damage and can even save someone's life.