Question

WHEN WE TAKE A BOTTLE AND CUT IT OF FROM IT'S BOTTOM AND PUNCHAHOLE ON THE CAP . NOW WE PUT SOME SAND AND SOME SMALL CRUMBS IN IT AND THEN PUT WATER IN . THE WATER COMES OUT FROM HOLE THAT WE COLLECT IS THIS WATER PURE ,IF IT IS PURE SO WHY WE CAN'T DRINK IT

Answer 1

because we don't believe in doing so as the brain says that it's not pure