Correct Answer: C
Explanation:
(C) The purpose of a filter is to purify what flows through it, which may be air, water, or some other substance. Similarly, the purpose of a sieve is to sift what flows through it, which may be flour, sand, or some other granular substance.
FILTER: a device for separating solid particles,
impurities, etc. from a liquid or gas by
passing it through a porous substance
Drain: to draw water or any liquid from gradually so
as to dry or empty !to drain swamps"
Sieve: a utensil having many small meshed or
perforated openings, used to strain solids
from liquids, to separate fine particles of
loose matter from coarser ones, etc.;
sifter; strainer
Pulverize: to crush, grind, etc. into a powder or dust