The correct answer is Berlin
After the Soviets blockaded Berlin, Western allies banded together and undertook an airlift to relieve the people of Berlin.
Nationalist leader Jiang was fighting a civil war against communists led by Mao.
A rise in society's population that is concentrated primarily in major cities is known as Urbanization.
Urbanization may occur both from the population shift from rural to urban residency as well as by population growth within the cities and can be understood as the the gradual increase in the proportion of people living in urban areas as opposed to rural areas.
A large proportion of local education funding is property taxes. It led to Texas becoming a leader in the aerospace industry.

Actually Welcome to the Concept of the history.
=> Potatoes and quinoa were among the unique crops; Camelids (llamas and alpacas) and guinea pigs were the unique domesticated animals.
=> The Incan civilization was predominantly agricultural. The Incas had to overcome the adversities of the Andean terrain and weather.