Electromagnetic and mechanical waves have different characteristics that make them advantageous for certain applications. select the reasons that mechanical waves, such as ultrasound, are used for soft tissue imaging and to identify fractures in metals. i) mechanical waves are less likely to damage materials than most electromagnetic waves. ii) mechanical waves have more energy than electromagnetic waves iii) mechanical waves can transmit results more rapidly than electromagnetic waves iv) mechanical waves generate vibrations that are sensitive to changes in temperature and density a) i and iv b) i and iii c) ii and iv d) ii and iii