Where is most of Earth's carbon stored? How much of it is stored there?

Largest amount of carbon on Earth is stored in sedimentary rocks within the planet's crust.

Explanation:

i believe you meant to say air rather than hair so the answer is below ")

the dead sea, the lowest place on earth at 430 metres (1,410 ft) below sea level, has a correspondingly high typical atmospheric pressure of 1065 hpa.