Giải giúp mình với làm nhanh ạ
: Large cities often have problems that small towns and rural areas do
not have. Two of the biggest problerms are heavy traffic and the
pollution that cars create. Of course, traffic problems and pollution are
not only found in big cities. However, the higher populations and larger
number of cars on the roads in cities can make the problems happen
more often and with more noticeable effects.
Öne of the most common traffic problerms that large cities have is
congestion. As the population of a city increases, so does the number
of cars on the road. Cities cannot always improve the number and size
of their roads and highways to keep up with the number of cars. The
result is traffic congestion, or traffic jams.
When traffic jams happen, cars that are stuck in the congestion
continue to run their engines. This creates pollution and is a big
problem. Pollution causes health problems for the people in cities and
also hurts the environment.
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