Is an ancient musical horn typically made of a ram's horn, used for Jewish religious purposes.
Answer:
C. Stirring a thick soup on a stovetop
Explanation:
because the soup is being heated/caused by molecular motion.
and because mechanical convection is the transfer of heat to a free flowing fluid on a heated surface.
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hope this helped ! <em>and i'm sorry if you got the answer wrong but c. is most likely the answer. </em>