As moving a chair is a voluntary action of our body, it is controlled by the master brain(i.e) the fore brain
mainly, a shell or external hard covering of an organism is preserved in cast and mold fossils.
when a tough hard shell sediments between 2 layers of sedimentary rocks, the upper layer can't enter inside the shell and eventually forms the mold fossil.
inside the shell all the organic matter dissolves eventually and rock minerals take their place forming the cast fossil.
emit wind from the anus.
waste time on silly or trivial .
an emission of wind from the anus.
a boring or contemptible person.
"he was such an old fart"