What is not an example of absorption?

- - water shooting out of a hose

- - writing an email

- - making hard-boiled eggs

- - driving to the dentist

- - the emission spectrum of a carbon arc

- - buying a new car

- - putting your shoes on

- - singing a song

- - cutting a tree down

- - learning to dance

- - cleaning the windows

- - building a radio

- - ironing your shirt

- - riding a bicycle

- - playing the piano