1 Match the words with their
1 extinct
2 laws
c
3 waste
a official rules that say what people
are allowed and not allowed to do
b to change from solid to liquid
(for example, from ice to water)
a large amount of water covering
an area that is usually dry
d not existing any more
e things that make water, air,
and the ground unclean
f material that people throw away
because they do not want or
need it any more
4 melt
5 flood
6 pollution