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The diagram above shows population change over time - Junior Cycle Geography - Question C - 2014
Question C
The diagram above shows population change over time. (i) What name is given to this diagram that shows population change? (ii) Explain each of the following: (a) ... show full transcript
Worked Solution & Example Answer:The diagram above shows population change over time - Junior Cycle Geography - Question C - 2014
Step 1
What name is given to this diagram that shows population change?
Answer
The diagram that illustrates population change over time is commonly referred to as the "Demographic Transition Model" (DTM). This model depicts the transformation of a country’s population structure based on factors such as birth and death rates throughout different stages of development.
Step 2
Why the death rate fluctuates (goes up and down) in Stage 1.
Answer
In Stage 1, the death rate fluctuates due to a number of factors including high mortality from diseases, famine, and poor living conditions. Epidemics and natural disasters can lead to sudden spikes in death rates, while improvements in sanitation or temporary availability of resources can cause a brief decline.
Step 3
Why the death rate declines rapidly in Stage 2.
Answer
The death rate declines rapidly in Stage 2 mainly due to improvements in healthcare, sanitation, and nutrition. These advancements reduce the prevalence of diseases and enhance overall living conditions, leading to a significant drop in the number of deaths.
Step 4
Why there is a natural decrease in population in Stage 5.
Answer
In Stage 5, a natural decrease in population occurs due to low birth rates coupled with an increasing death rate. The reasons behind lower birth rates often include factors such as increased access to education and employment for women, urbanization, and changing social norms that prioritize family planning.