Authorities should take various steps to mitigate the air pollution problem that ........................................ a serious threat to people’s health.

The major contributors to carbon . ........................................ are food, consumption, transportation, and household energy.

Young people ........................................ from the countryside to cities in search of job opportunities.

There are several measures to raise the living ......................................... of urban residents.

Green spaces provide an ......................................... look of the large metropolises.

Authorities should take various steps to ......................................... the air pollution problem

Government should ........................................ policies that can curb heavy traffic congestion.

Many inhabitants of large cities claim that the ......................................... pace of urban life is the main culprit of stress and depression.

Affordable ........................................ might result in a higher quality of life for low-income people.

The ........................................ of living in urbanized regions has risen sharply over the last decades.