The world population has grown very rapidly. Why?
- The world population has grown very rapidly because the death rate has
gone down as a result of the growth of food supplies and the improvement
of medical facilities.
- Also, unlike the death rate, the birth rate has
remained quite high.
-
The birth rate and the death rate are two factors that influence
population change.
- The birth rate is the number of live births per 1000
people while the death rate is the number of deaths per 1000 people.
- Thus, the birth and death
rates affect the balance of population.