Please help if its correct i will mark brainliest Which substance will allow electricity to flow through it easily? *
rubber
glass
wood
copper

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.