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the using of the earth’s resources the control over the waste of the natural materials how to slow down the increase of population how to stop the birth of new babies
city pollution population pollution countryside pollution industry pollution
fewer people moved from countryside to the cities more people moved from countryside to the cities industry developed less fast many people moved to the cities without the development of industry
350 million 25,000 million 4,000 million 7,000 million
What However Whatever Whichever
don’t believe; / believe; don’t don’t hope; / believe; doesn’t
equal; has equal; have equally; has equally; have
the trade of farm birds the waste and liquids of infected birds the fact that sortie people touched sick birds or any infected part of sick birds the virus changed and started spreading in some new forms
whatever whenever wherever however
will have will has will be are
fewer people moved from countryside to the cities more people moved from countryside to the cities industry developed less fast many people moved to the cities without the development of industry
the others others other another people
believe to believe believe in to believe in
believe that most people are superstitious believe that very few people are superstitious believes that there are still some evidences of superstitions in what we say and what we do is superstitious
city pollution population pollution countryside pollution industry pollution
whatever whenever wherever however
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