towns are many pollution in factories,vehicles etc,etc .
The preposition "in" is commonly used after the word "prevailed." For example, "Peace prevailed in the region" or "Justice prevailed in the court case."
Unfortunately, the view of Radical Republican prevailed in Reconstruction.
Joseph Stalin prevailed over Trotsky since they were the two main rivals to succed Lenin on his death.
The basic objective of Faraizi movement was to eliminate the un-Islamic customs and traditions which prevailed among the Bengali Muslims and helped bring the Muslims on the right path of Islamic teachings. He encountered a number of obstacles and difficulties in the beginning but gradually. thanks
Sparta prevailed over Athens .
Japan.
Sometimes it has technical difficulties. If doesn't work the next day your facebook is messed up.
food difficulties,shelter difficulties etc
You should say "come out from difficulties" instead of saying "come out of difficulties."
To reduce the traffic flow through town. It was built in the 1990's
It is more proper to say "come out from difficulties" compared to saying "come out of difficulties."
Unless you live in a city or town with access to piped-in water and food deliveries, it will be very difficult to live without these necessities.