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recycle,pollution,disappearing,help,organization,ecology,danger,cut down,polluters,littering.
… is a big problem in our cities.
People can … rubbish instead of throwing it away.
… is very dangerous for people, animals and birds.
Many species of animals are … .
It is necessary to … wild animals.
Greenpeace is an … that fights to protect the environment.
Many people are concerned about the … today.
The seas and rivers are in … .
People need wood and paper so they … forests.
Cars are the world’s biggest air …