题目内容

Watch the video clip "Urbanization and the future of cities"and answer the following questions.One hundred years ago, what percentage of the human population lived in cities?

A. 10%
B. 20%
C. 40%
D. 80%

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Watch the video clip "Urbanization and the future of cities"and answer the following questions.What lead to the development of the first semi-permanent settlements?

A. Changes in the global climate
B. An increase in fresh water supplies
C. Improvements in healthcare
D. Advancements in agriculture

Watch the video clip "Urbanization and the future of cities"and answer the following questions.Which of these technologies developed because of the desire to trade with other cities?

A. Tractors
B. City walls
C. Roads
D. Aqueducts

Watch the video clip "Urbanization and the future of cities"and answer the following questions.Why did people first move into cities?

A. Jobs
B. Fun
C. Safety
D. More farmland

Watch the video clip "Urbanization and the future of cities"and answer the following questions.The global population is expected to peak at ___ billion.

A. 7
B. 6
C. 9
D. 10