What do playing a guitar, banging a drum, and dropping a pebble in the water have in common?
They all produce light. They all cause vibrations. They all convert heat to energy. They all need gravity to move.
Question: What do playing a guitar, banging a drum, and dropping a pebble in the water have in common?
A. They all produce light.
B. They all cause vibrations.
C. They all convert heat to energy.
D. They all need gravity to move.
Answer: