It's only visible when it's cold. It gets harder when it's higher. Its presence is often unnoticed, but you'll always notice you absence.
What is it?
Breath.
It's only visible when it's cold. It gets harder when it's higher. Its presence is often unnoticed, but you'll always notice you absence.
Trend Riddles
When I turn white, you know it's time to throw me away.
What am I?