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the lack of houses or shelters
homelessness
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the consequence of burning fossil fuels, cutting down rainforests and farming livestock
climate change
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the increasing expenses when living in big cities
high cost of living
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too many vehicles on the roads at the same time
traffic jam/congestion
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the times during which the majority of people commute
rush hour
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people’s desire to look for better education or well-paid jobs in cities, so _______ happens
urban sprawl
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the result of the deprivation (sự thiếu thốn) and unstable conditions
a high crime rate
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the lack of necessary skills to do the jobs leads to _______
unemployment
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too many people living in one place
overcrowding
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the air released from our cars
exhaust fumes
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