Opal is making a list of the uses of electromagnetic radiation. Which of the following should Opal NOT include in her list? A. A man using a microwave to boil water B. A submarine using sonar to locate

Opal is making a list of the uses of electromagnetic radiation. Which of the following should Opal NOT include in her list?

A. A man using a microwave to boil water

B. A submarine using sonar to locate a ship

C. A girl using a remote control to change television channels

D. A hospital using an X-ray machine to take a picture of a broken bone

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