The opposite of war
peace
when there's a ... people are always hungry
famine
people live in ... when they are poor.
poverty
... is a big problem in some countries because there aren't enough schools.
illiteracy
When people have a..., they become ill.
disease
Air and water ... is bad for the environment.
pollution
There was an act of .. in New York on 11th September 2001.
terrorism
