A mega-city is defined as

• a city with more than 10 million people
• a city with more than 20 million people
• a city that has global influence
• a city that receives more migrants than loses emmigrants

Urbanization is

• The process of urbaning
• When an increasing percentage of a country's population lives in cities
• When more people move from one city to another
• When the size of cities grow

the two ways that urban areas grow are

• nitrogen and phospherous
• natural increase and migration
• increasing birth rates and migration

In the last few years, the % of people in the world living in urban areas has surpassed

• 25%
• -25%
• 65%
• 50%

Examples of centrifugal movement are

• spinning, twirling and whizzing
• Suburbanisation, Counter-urbanization, urban sprawl
• rural-urban migration, re-urbanization

reasons for counter-urbanization include

• high land prices, pollution, high crime
• reinvestment into inner-city areas, gentrification
• attractions such as the olympics and new skyscapers

megacities comprise around what % of the world population?

• 1%
• 20%
• 7%
• 30%

Which is NOT considered a megacity

• Hong Kong
• Tokyo
• Osaka
• Shanghai

According to moedls,  as you move away from the city center, quality of life

• Increaes in MEDC, Decreases in LEDC
• Increases in LEDC, Decreases in MEDC
• Does not change 

One argument to suggest that slums are can be a positive force is

• They are a base for many informal entrepreneurs 
• They make use of hazardous land
• They help provide CAS opportunities for IB students