It's Copper (Cu). because when copper oxidizes it becomes green
I’m confuse between A and B but I think it is mostly B
Our ears use vibrations to detect sound.
Inside our ears we have an eardrum, this eardrum is connected to three small bones known as Ossicles. When something makes a sound is creates a vibration that makes the eardrum vibrate and pass this vibration through the Ossicles to the Co<span>chlea which allows us the comprehend the sound something is making.
I hope this helped. Have a great day!</span>
