Consider the Following:

Imagine you suddenly awaken on the equator of a planet in a faraway star system, with nothing but the clothes on your back. This planet is entirely made of chalk and chalkboards, is roughly spherical, has a breathable atmosphere, and has earthlike gravity. There is nothing else on this planet other than the chalk and chalkboard-like rock.



Imagine this planet has one large moon which orbits the planet roughly every 24 hours and orbits a single star. Assume the planet follows a perfectly circular orbit around the star, rotates once every year, and has no axial tilt.



Assume you will die of dehydration in precisely 48 hours.