What, if any, of these collection and packaging techniques is incorrect? i. one individual should be designated as evidence collector to ensure evidence is collected in a consistent manner

ii. similar pieces of evidence are to be placed in shared containers, sealed and labeled.

iii. if there is a body, the collection of the body is done by the coroner or medical examiner

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.