Population

Today in class we did not start a new unit we just went further into the unit we were already in which is population. We took some notes which are.....

Key issues

1. Where is the world distributed?
2. Why is global population increasing?
3. Why does population growth vary among regions?
4. Why do some regions face health threats?

Population Concentrations

• 2/3 of the world's inhabitations are clustered in regions
• East Asia 
• South Asia 
• Southeast Asia 
• Europe
• Site and situation of population clusters 
• Low-lying areas with fertile soil and temperate climate
• Near an ocean or near a river with easy access to an ocean

Sparsely Populated Regions 

• Humans avoid clustering in certain physical environments 
• Dry lands
• Wet lands 
• High lands 
• Places considered too harsh for occupancy have diminished over time

Population Density 

• Density can be computed in up to three ways for a place 

1. Arithmetic Density
2. Physiological Density
3. Agricultural Density 

Components of population Growth 

• Geographers measure population change in a country or the world as a whole by using three measures
• Crude Birth Rate(CBR)
• Crude Death Rate(CDR)
• Natural Increase Rate(NIR)