hello, i hate the feeling of chalk
Chalk is actually a rock that is soft, white, and porous.  It's made of calcite!
yeah, but it is weird in thinking it is a rock
It is!  It forms as calcite shells accumulate in deep marine conditions.
 so it came from living beings, interesting
Yes it does, and is a form of calcium carbonate.
so you can eat chalk if you have an upset stomach :)
the clays with which it is usually associated, thus forming tall, steep cliffs where chalk ridges meet the sea. Chalk hills, known as chalk downland, usually form where bands of chalk reach the surface at an angle, so forming a scarp slope. Because chalk is well jointed it can hold a large volume of ground water, providing a natural reservoir that releases water slowly through dry seasons.
Mining.
Chalk is mined from chalk deposits both above ground and underground. Chalk mining boomed during the Industrial Revolution,
Chalk
Chalk is a soft, white, porous, sedimentary carbonate rock, a form of limestone composed of the mineral calcite. Calcite is an ionic salt called calcium carbonate or CaCO. It forms under reasonably deep marine conditions from the gradual accumulation of minute calcite shells (coccoliths) shed from micro-organisms called coccolithophores. Flint (a type of chert) is very common as bands parallel to the bedding or as nodules embedded in chalk. It is probably derived from sponge spicules or other siliceous organisms as water is expelled