Cities change with lot of people coming making pollution with transportation and building lot of houses.
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Yo
1/30/2013 01:59:33 pm
It's a cycle. More people are born so they need transportation. Transportation makes pollution. There's more people come so there's a lot of buildings. Vaaris made a cycle.
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ARAFAT
1/31/2013 10:05:43 am
Transportation can make people sick then more deseises come and that makes more pollution.
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