A teacher is explaining waves to her students. Explain what must happen at the particle level in order for the sound from the teacher’s voice to reach the student’s ears.

“other instruments such as gravimeters and magnetometers are also used in the search for petroleum. extracting crude oil normally starts with drilling wells into an underground reservoir. when an oil well has been tapped, a geologist (known on the rig as the "mudlogger") will note its presence. “ this is what i found on google i hope it

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