Water
pollution
____________________
when
pollutants
get
into
water
mainly
by
human
causes
or
human
factors
.
Water
pollution
is
the
second
main
____________________
____________________
along
with
____________________
____________________
.
Water
covers
over
70%
of
the
Earth's
____________________
.
It
is
a
very
important
resource
for
people
and
the
____________________
.
Today
,
more
and
more
organisations
are
working
to
____________________
,
restore
waterways
and
help
keep
waters
from
____________________
,
and
also
to
____________________
water
____________________
from
____________________
.
