Age Structure

The correct answer is A. Remittances are money migrants send to people in their region of origin. They can raise household income, but they do not necessarily bring migrants back. If working-age adults continue living and working elsewhere, their share of the population remaining in the rural source region may fall, changing its age structure.

The correct answer is A. Zero net migration means arrivals and departures balance in number, not in age. Younger arrivals replacing older departures can shift the city's age composition toward younger ages. The exact change in the city's average age depends on its starting age structure and the number of people involved, but zero net migration does not rule out a change in population composition.

The age group from 0 to 14 years represents children and young adolescents. If this group forms a very large share of the total population, the population has a broad base and many young people. Such a distribution is called a youthful age structure. It often occurs where fertility has been relatively high, although mortality, migration, and the exact age boundaries also influence the final pattern.

Option A is therefore correct. An ageing structure would have a larger share of older people and usually a narrower base. A stable low-birth structure would not normally contain an exceptionally large child share, and a population cannot be classified as migrant-only merely because its children form a large proportion. The important evidence is the unusually high proportion of people aged 0 to 14, which identifies the population as youthful and may create strong future demand for education and later employment.

A continuously rising share of people aged 60 years and above means that older people make up an increasing part of the total population. This is a direct indicator of population ageing. It may result from low fertility, which reduces the relative size of younger cohorts, together with lower mortality and longer life expectancy, which allow more people to reach older ages.

Option B names the process correctly. Option A would require a growing share of younger people, not older people. Option C is too strong: child dependency may decline during ageing, but it does not necessarily disappear. Option D is unsupported and generally does not follow from a rising older-age share. The age threshold in the question is being used as an indicator of the population’s changing age composition, so B is the appropriate choice.

Dependency burden refers to the pressure placed on the working-age population by people who are usually outside the main working ages. The two broad dependent groups are children and older persons. They may need food, education, health care, shelter, pensions, or daily support, while they generally contribute less regular earned income than working-age adults.

The burden becomes relatively high when children and elderly people form a large share of the total population compared with the working-age group. A large working-age population with few dependants would usually reduce the dependency burden, not increase it. Employment of everyone is not the definition of dependency, and zero births and deaths do not identify the age structure. Therefore, option B is correct.

A rising working-age population means that more people may enter or seek employment. It does not mean that jobs will automatically increase at the same rate. If industries, services, businesses, and skill-training systems cannot absorb this growing labour force, many people may remain without work or may accept irregular, low-paid employment.

Therefore, the direct possible problem described is an increase in unemployment, making option A correct. A larger working-age group does not eliminate the need for schools, remove elderly people, or make the birth rate automatically zero. The result depends on education, skills, investment, labour demand, and effective public policy. A favourable age structure becomes an advantage only when employment opportunities are sufficient.

A country with a high proportion of children must prepare services for a large young population. Children need schools, teachers, vaccination, nutrition, primary health care, safe water, protection, and other forms of care. These needs are likely to be more urgent than elderly services when the elderly share is very small. Planning for children also prepares the future workforce and improves human development.

Option B is correct because schools and child health directly match the age structure described. Elderly pensions, old-age homes, and retirement insurance may still exist, but they are less likely to be the major immediate priority when relatively few people are old. The word “only” in the other choices makes them especially unsuitable. Therefore, child-focused education and health services are the best answer.

Persistently low birth rates make each younger generation smaller than the previous one. At the same time, increasing life expectancy means that a greater proportion of people survive to older ages. As these processes continue, children occupy a smaller share and older people occupy a larger share of the total population. The age pyramid may therefore become less broad at its base and relatively wider in the middle or upper sections.

Option B is the most likely result: the population will move toward ageing. Low fertility does not rapidly expand the child population, and it does not make the working-age group disappear immediately; any labour-force effect develops over time. The base of the population pyramid would generally narrow rather than broaden. The combined evidence of sustained low fertility and longer lives is a standard demographic pattern associated with a rising elderly share and population ageing.

A population pyramid displays age groups from young ages at the base to older ages near the top. The width of each section represents the relative size of that age group. A very broad base therefore means that many people are children or young dependants. A very narrow top means that comparatively few people survive into older age groups.

The best interpretation is option A: the child population is large and the elderly population is small. This shape commonly indicates a youthful population and often reflects high fertility in recent years, though the shape alone does not prove every cause. It does not mean that the working-age group is absent, and it is inconsistent with very low birth rates or an elderly-dominated population.

A population pyramid shows the distribution of people by age, usually with younger ages at the bottom, working ages in the middle, and older ages near the top. When the middle portion is relatively wide, it means that a large proportion of the population lies in the main economically active ages, often broadly described as about 15 to 59 or 64, depending on the statistical system.

Therefore, option A is correct. A wide base would point more strongly to many children and a youthful population, while a wider top would indicate a larger elderly share. A wide middle does not mean that there are only newborns, that the birth rate is zero, or that every person in the group is employed. It indicates a potentially large working-age population, whose actual employment depends on education, health, skills, and available jobs.

A large youth population entering working ages can create both an opportunity and a serious challenge. If young people receive suitable education and skills and can find productive work, they may increase production, incomes, tax revenue, and economic growth. Without enough jobs, however, the same demographic change may produce unemployment, insecure work, frustration, and social pressure.

The most necessary response is therefore a combined policy of skill development and job creation. Technical training, quality education, apprenticeships, entrepreneurship support, and expansion of productive industries can help young adults enter the labour market. Pension increases and elderly health care address ageing, not the immediate needs of a large incoming workforce. Ending birth registration would weaken planning and public services. Hence option A is correct.

A country with a very high share of children must provide services for a large young population. It may need more classrooms, teachers, textbooks, transport, nutrition programmes, vaccinations, and school health services. These requirements can make education a major public spending priority. The pressure is especially strong when many children are entering school at the same time.

A large elderly population would instead raise the relative need for pensions, geriatric care, and treatment of chronic conditions. A very low birth rate generally reduces the number of children requiring new schools, while a majority above age 60 describes an ageing population rather than a child-heavy one. Thus option A gives the clearest condition for spending relatively more on education than on elderly health care.

When the elderly share rises while the working-age share falls, the number of potential workers supporting each older person may decline. This can increase the dependency burden on workers, families, employers, and the government. Pension systems may face greater expenditure, and demand for healthcare and long-term care may also grow. If fewer people are contributing taxes or social-security payments, financing these services can become more difficult.

Therefore option A, pension and dependency burden, is the most suitable answer. A growing elderly population does not mean that schools must face an extreme shortage, because school demand is more directly related to the number of children. It does not imply excess child labour, and fertility does not automatically rise. The exact size of the challenge depends on retirement ages, productivity, migration, savings, health, and policy, but the direction described in the question clearly raises pressure on pensions and support systems.

A demographic dividend is a possible economic benefit that occurs when the working-age population forms a large share of the total population while the shares of children and older dependents are relatively smaller. Fewer dependents can reduce the support burden per worker and may allow more resources for saving, education, health, investment, and productive employment. However, a favourable age structure alone does not guarantee a dividend; suitable jobs, skills, health, institutions, and policies are also necessary.

Option A is correct because it describes the age composition most favourable for this opportunity. If children dominate, many people still need support. If only elderly people are numerous, old-age dependency is high. Equal age groups with no employment cannot create an economic dividend merely through population structure. The key condition is a high working-age share combined with a low dependent share and the capacity to use the available labour productively.

The 15–59 age group is commonly treated as the working-age population, while children and older people are generally considered dependent groups. If the child group is shrinking and the working-age group is growing, a country may soon have a large supply of potential workers. This can create an opportunity for higher production, income, and economic growth. However, the opportunity is not automatic. It depends on whether people receive suitable education, skills, health care, and decent employment.

Option A is correct because a growing working-age group can provide a large potential labour force. The figures do not imply that elderly dependency has immediately reached its maximum; that would require information about the older population. A declining child group does not double school demand, and it does not cause birth rates to rise rapidly. The key demographic opportunity is a possible demographic dividend when the working-age population is productively employed.

A population pyramid shows the share of people in different age groups. Its base represents children and recent births, while the upper part represents older age groups. A narrow base means that recent births are relatively few, so the younger population is not large. If the upper part is comparatively wide, many people survive to older ages and elderly groups make up a larger share. Together, these features describe an ageing population.

Therefore, option B is correct. A youthful or high-fertility population generally has a broad base because many children are being born. The shape alone does not establish that the population consists only of migrants; migration may affect some age groups, but it is not the direct conclusion here. The key is the combination of fewer recent births and a substantial older population, which signals population ageing and may increase the need for pensions and care services.

Migration can change the age structure much faster than births or deaths usually do. People who move for jobs are often young adults in the working-age group. If many such people enter an area, the number and proportion of working-age residents rise suddenly. Therefore, option A is the correct answer.

The effect is especially clear when the incoming population is concentrated in ages commonly defined as working age, such as 15–59 or 15–64, depending on the statistical system. Newborns increase the child population, and a rise in elderly residents increases the older-age share; neither directly raises the working-age share. A zero birth rate would eventually affect younger cohorts, but it would not suddenly bring more working-age people into the area.

Age structure is affected by migration because migrants are not evenly distributed across all age groups. Young adults commonly move for employment, education, or better opportunities. If many of them leave the origin area, the number and proportion of people in the working-age group there can decline. The area may then have a relatively larger share of children and elderly residents.

This does not mean that children immediately disappear, that all older people leave, or that births automatically rise. Birth rates may even fall if many potential parents have migrated, but that result is not automatic. The most direct and likely effect described is a reduced working-age share in the origin area. Therefore, option A is correct.

When the share of children falls and the working-age share rises, each worker may have fewer children to support. This can create an opportunity for higher production, income, saving, and investment. The opportunity is not automatic: it depends on good education, useful skills, health, employment, and suitable economic policies. Therefore, option A is the careful and correct answer.

A larger working-age population can contribute more labour and tax revenue, while reduced child dependency can lower pressure on households and public services. If jobs are unavailable or workers lack skills, the same population structure may instead create unemployment and social stress. School demand will not necessarily multiply, pensions will not immediately end, and fertility does not automatically rise. The likely possible effect is greater productive capacity when conditions are supportive.

An ageing age structure contains a relatively large share of older people. As people live into advanced ages, the need for continuing care may rise. Long-term health care can include support for chronic illnesses, rehabilitation, regular monitoring, assistance with daily activities, and services that help people live safely over many years. These needs are different from short-term treatment for an isolated illness.

A youthful or high-birth structure contains more children and usually creates stronger demand for schools, immunisation, maternal care, and paediatric services rather than elderly long-term care. A child-only structure cannot be the best setting for services aimed at older adults. Therefore option A is correct. Ageing does not mean every older person is dependent, but a larger elderly share makes increased long-term-care demand more likely.

A bell-shaped population pyramid generally has a broad middle, representing a substantial working-age population, while the youngest and oldest groups are not extremely large. This suggests that the age distribution is comparatively balanced rather than dominated by children or elderly people. When the differences among age groups are not very large, the population may be relatively stable, with no extreme expansion or contraction visible in its age structure.

Option A is therefore the best answer. An extremely youthful population would usually have a very broad base, while an extremely ageing population would show a larger upper section and a narrow base. A bell shape does not mean that everyone is a migrant, and the diagram alone cannot prove exact birth or death rates. It indicates a comparatively even age distribution, so “relatively stable population” is the most suitable interpretation among the choices.

Child dependency refers to the number or share of children compared with the working-age population. It tends to be high when many babies and young children are entering the population. If the birth rate declines steadily, each new child cohort is usually smaller than the preceding one. After some time, children form a smaller proportion of the total population, so the child dependency ratio declines, assuming other conditions do not offset this trend.

Option A is therefore correct. A rapidly rising birth rate and an increasing number of newborns would normally raise child dependency rather than reduce it. Low child mortality combined with many births would also leave more children alive and dependent. The effect is not caused by an immediate disappearance of children; it develops as smaller cohorts replace larger earlier cohorts over time.

Elderly dependency rises when older people make up a larger share compared with the working-age population. Longer life expectancy allows more people to survive into old age. At the same time, low fertility produces smaller younger generations, so there are relatively fewer future workers supporting or providing services for older people. The combination of more elderly survivors and fewer children is therefore especially likely to increase the elderly dependency ratio.

Option A is correct because it combines rising life expectancy with low fertility. Option B would usually create a younger population, with a larger child dependency burden rather than an elderly one. Option C also concerns child dependency, not elderly dependency. Option D tends to lower the elderly dependency ratio if the working-age population grows faster than the elderly population. The ratio is relative, so both age groups must be considered.

A large child and adolescent population is a sign of possible future employment pressure. These young people will gradually complete education and enter the working-age group. If the economy does not create enough jobs, the number of job seekers may grow faster than available employment. Governments therefore need to plan early for education, skills, industries, services, entrepreneurship, and labour-market opportunities.

Option A is correct because a large youth cohort will later increase the supply of workers and the demand for jobs. A very large elderly population mainly signals pressure on pensions and health care, not the specific future employment pressure described here. The other choices are either narrower or unrealistic. The answer identifies a population pattern that gives policymakers time to prepare before the young cohort reaches working age.

Young adults are usually part of the working-age population. When many of them move into a region, the immediate demand for employment, housing, transport, water, and other urban services can rise. If migrants bring spouses or children, the need for schools and health services may also increase. The exact pressure depends on the size and speed of migration and on the region's existing capacity.

Housing and jobs are the most direct and broadly expected pressures among the listed choices. Elderly pensions and old-age homes mainly relate to an older population, not to the arrival of young adults. Child vaccination could rise in some circumstances, but it is not the primary general effect of young-adult in-migration. Therefore option A is correct.