Urbanization and the future of cities.

Today, more than (a)   of people live in an urban area.

The percentage of people that will probably live in cities by 2050 is...

• 60%

• 55%

• 85%

• 70%

In the earliest days, hunter-gatherers didn't live in the same place because...

• they hated staying in the same city.

• they needed to search for food.

• wild animals would attack them.

• it was their culture.

_______ years ago, humans learned about the basics of agriculture and selective breeding.

• 15,000

• 8,000

• 10,000

• 5,000

The first villages were semi-permanent the (a)   was degraded and it was not fertile anymore.

When communities could have a stable place and they produced food, crafts and other goods, _______ and interaction appeared.

• friendship

• longer trips

• governments

• commerce

___________ made it possible to commercialize and trade with communities in further places, no matter the longer distance.

• Cars, roads, and ships.

• Sheep, roads, elephants and boats.

• Ships, ports, carts, and roads.

• Riding elephants and other animals.

Some cities in 2000BC had really big populations because (a)   was not widely available.

Cities as we know them, only appeared until...

• the Middle Ages.

• the 21st century.

• Regional empires.

• the Industrial Revolution.

Global population is currently (a)   billion.