The Sahara Desert
limits on international trade with South Africa
A factor that limits the growth of a population.
Mountains are often considered a geographic feature that served as a natural barrier between cultures, as they are challenging to cross and can restrict movement and communication between different groups of people. For example, the Himalayas in Asia and the Andes in South America have historically limited contact and interaction between nearby cultures.
Desertification
Food supply
7 Billion
As of 2004, Cairo, the capital of Egypt, is the African capital with the largest population, about 7.6 million. When the surrounding metropolitan area is included, Cairo has a population of 11.1 million, making it the among the twenty largest cities in the world. As of 2007 (according to Wikipedia), Lagos, Nigeria has the most population, with over 8,714,228 people. Cairo comes next with over 7,734,334.
Some of the geographic features that have served as natural barriers that limited contact between cultures include oceans, deserts, mountains, and dense forests. These physical barriers made it challenging for people to travel easily and interact with neighboring cultures, leading to more isolation and the development of distinct cultural identities.
About 677,000 inside the city limits.
The confines of a city refer to the boundaries or limits that define its geographic extent. These boundaries can be physical features like rivers, mountains, or man-made boundaries like city limits or municipal boundaries that separate it from neighboring areas.
Shorter life expectancy, incurable disease, over population and not enough food can limit population growth
250;000 within the city limits