_____is the inability to read and write.
_____ is th difference in social status between people.
______ is the movement of large numbers of people.
_____ is when two or more countries fight with each other.
____ is the lack of food.
____ are the things people agree everyone should have, such as education and freedom.
A_____detergent can be broken down by bacteria.
_____ rain destroys the forests and the soil it falls on.
Many countries have promised to reduce their _____ emissions to stop global warming.
______wastemust be disposed of properly, not just poured into rivers.
At rush hour it's hard to see the city through the ____ smog.
Joining a _____pool means cutting both your petrol cocts and air pollution.
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