: Cities first appeared thousands of years ago (e.g., Babylon, Athens) to make living together safer and more convenient.
Despite its benefits, the city is an because its complex life-support systems can fail. Transport : The highest risk of accidents occurs on roads. obzh referat 5 klass gorod kak sreda obitaniia
A city is an created by people to meet their needs. Benefits (The "Pros") : Comfort : Houses have water, gas, and electricity. : Cities first appeared thousands of years ago (e