How did the projected storm track change from image A TO B TO C TO D

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.

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.