Population growth/change short note
Understand the Problem
The question is asking for a brief overview or summary of the concept of population growth or change, which likely includes factors influencing population dynamics such as birth rates, death rates, migration, and other demographic factors.
Answer
Population growth occurs when births exceed deaths, influenced by birth, death, and migration rates.
Population growth occurs when the birth rate exceeds the death rate, resulting in an increase in the number of humans on Earth. Key factors influencing population change include births, deaths, and migration.
Answer for screen readers
Population growth occurs when the birth rate exceeds the death rate, resulting in an increase in the number of humans on Earth. Key factors influencing population change include births, deaths, and migration.
More Information
Population growth rates have varied significantly over time, peaking during the 1960s at 2.2% annually. Currently, the major components affecting population changes are natural increase and migration.
Tips
Avoid confusing the terms 'population growth rate' with 'population size'—growth rate refers to how quickly the population size changes.
Sources
- Population growth - Understanding Global Change - ugc.berkeley.edu
- Growth or Decline: Understanding How Populations Change - census.gov
- Components of population change - Office of Financial Management - ofm.wa.gov
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