Final answer:
In the first stage of the Demographic Transition Model, the Natural Increase Rate is stable due to the balance between high birth rates and high death rates. An example of NIR changes is when the death rate is 15 per 1,000 and the birth rate is 35 per 1,000, resulting in a growth rate of 2%. This rate of growth characterizes the early stage of demographic transition.
Step-by-step explanation:
In the first stage of the Demographic Transition Model (DTM), the Natural Increase Rate (NIR) is generally stable, but it may not necessarily be low due to a balance between high birth rates and high death rates. The birth rates are high because of a lack of family planning, high infant mortality, and the economic benefit of having more children in agrarian societies. Simultaneously, death rates are also high due to factors such as limited access to modern medicine and healthcare, poor nutrition, and widespread disease.
For example, if a country during the early stages of demographic transition has a death rate of 15 per 1,000 people per year and a birth rate of 35 per 1,000 per year, the net people added to the population annually would be 20 per 1,000 people (35 births - 15 deaths = 20 people). This represents a 2% rate of growth (20/1,000).
As countries progress through the stages of the DTM, they typically experience a demographic transition as death rates decline first, followed by birth rates, leading to different patterns of population growth.