Because death rates have declined more rapidly than birth rates . Why have death rates declined? Because more people have access to adequate food, clean water, and safe sewage disposal.
Why does the death rate usually decline during a demographic transition?
In Stage 3 of the Demographic Transition Model (DTM), death rates are low and birth rates decrease, usually as a result of improved economic conditions , an increase in women’s status and education, and access to contraception.
What was the major reason why the death rate dropped in the stage 2 of the demographic transition quizlet?
Countries in Europe and North America moved into stage 2 because of the medical revolution – the diffusion of medical technology to Africa, Asia, and Latin America – which reduced the many traditional causes of death in LDCs. Most African countries remain in Stage 2.
Why does the death rate fall in stage 2 of the demographic transition model?
Stage 2: Total population will start to rise because the death rates will start to fall (to around 18/19 per 1,000). Birth rates will remain high. Death rates fall due to: medical care will be improved (vaccinations, scientific improvements, doctors and new drugs);
Why death rates generally fall before birth rates in the demographic transition?
The Demographic Transition
First, birth and death rates are both high, so little growth occurs. Second, death rates fall due to improved living conditions , while birth rates remain high. During this period population grows rapidly.
What is a Stage 4 country?
In Stage 4 of the Demographic Transition Model (DTM), birth rates and death rates are both low, stabilizing total population growth. ... Examples of countries in Stage 4 of the Demographic Transition are Argentina, Australia, Canada, China, Brazil, most of Europe, Singapore, South Korea, and the U.S.
What are the 3 stages of demographic transition?
Stage 1- high and fluctuating birth and death arte and population growth remains slow Stage 2- high birth rate and declining death rate and rapid population growth rate Stage 3 – Declining birth rate and low death rate and declining rate of population growth Stage 4- low birth and death rate and slow population growth ...
What would a population pyramid in Stage 2 look like?
The shape of the population pyramid for Stage 2 of the demographic transition reflects a reduction in mortality , especially among the youngest age groups, coupled with high fertility; the population increases rapidly but remains relatively young.
What are the 5 stages of epidemiological transition?
The epidemiologic transition describes changing patterns of population age distributions, mortality, fertility, life expectancy, and causes of death .
What country is in Stage 2 of the demographic transition?
Still, there are a number of countries that remain in Stage 2 of the Demographic Transition for a variety of social and economic reasons, including much of Sub-Saharan Africa, Guatemala, Nauru, Palestine, Yemen and Afghanistan .
What country is in Stage 1 of the demographic transition?
The model has five stages. At stage 1 the birth and death rates are both high. So the population remains low and stable. Places in the Amazon, Brazil and rural communities of Bangladesh would be at this stage.
What are the two main reasons why birth rates are high in Stage 1 of the demographic transition model?
In Stage 1 (Figure 3.4. 1), both birth rates and death rates are high. The high death rates are because of disease and potential food scarcity . A country in Stage 1 of the demographic transition model does not have good health care; there may not be any hospitals or doctors.
What does a Stage 3 population pyramid look like?
Stage 3 is marked by continuing , but slower, decline in death rates coupled with a significant decline in birth rates . The result is continued growth in the population but at a much slower rate.
Why is the death rate high in Stage 1?
In stage 1 both the birth rate and death rates are high and fluctuating. ... Death rates are high due to disease and plague (such as bubonic plague in the British Isles in 1348), inadequate and uncertain food supplies resulting in famine, poor hygiene and sanitation.
Why are there no countries in stage 1 of the DTM?
Zero population growth is when the crude birth rate and crude death rate are equal and the population remains the same. The birth rate and the death rate are both high and equal each other out. No official country in the world is currently in stage 1.
Why do birth rate and death rate fluctuate at a high level in the stage 1 of the demographic transition model?
Stage 1 – High Fluctuating
Birth Rate and Death rate are both high. Population growth is slow and fluctuating. Birth Rate is high as a result of: Lack of family planning .
