Age Structure

Correct answer: A. Greater need for schools and nutrition programs

The age group from 0 to 14 consists mainly of children who are usually not economically active. A large share of children therefore creates strong demand for services that support growth, learning, and health. Governments and communities may need more schools, teachers, classrooms, nutrition programmes, vaccination, child-health care, and safe recreational facilities.

This does not mean that every child has exactly the same need or that other services are unimportant. It means that the age structure gives a clear planning signal: a youthful population requires substantial investment in children. Pension and geriatric-care needs are more directly associated with a large elderly population, not a large child population. Therefore option A is the appropriate social effect. The question asks for one effect, and the increased need for schools and nutrition programmes follows directly from the large 0–14 share.

Correct answer: A. Human labor resource

The working-age population consists of people who are generally able to participate in economic activity. A larger share of this group can increase the potential supply of human labour for farms, factories, offices, transport, education, health services, and other sectors. It may also support economic growth if people have suitable education, skills, jobs, and good health. The word potential is important: a large working-age share alone does not guarantee employment or prosperity.

Option A is correct because it directly names the human labour resource that can expand with a larger working-age population. Child dependency and elderly dependency are burdens or support needs, not resources created by this age group. Geographical area does not change when the age structure changes. Thus the demographic advantage is a possible increase in available workers, provided that the economy can absorb and productively employ them.

Correct answer: A. Population ageing

Population ageing means that older people form an increasing number or share of the total population. If the number of people above 60 rises, the country may be experiencing this process. Ageing can occur because people live longer, health conditions improve, fertility remains low, or younger groups become smaller. The important idea is not simply that older individuals exist, but that their relative importance in the population is increasing. Therefore, option A, population ageing, is correct.

The other choices refer to different matters. A child population explosion would mean a rapid increase in children, not older adults. A fall in literacy is an education-related change and does not define an increase in the elderly population. Land degradation concerns the quality of land and is unrelated to age composition. A growing elderly group may also increase the need for pensions, health services, and care, but those are consequences of ageing rather than the name of the process itself.

Correct answer: A. Employment and skill training

A very large young population today will gradually move into older age groups. In the coming years, many of these young people will reach working age and seek jobs, apprenticeships, vocational courses, higher education, and other forms of skill development. Consequently, demand for employment and training can rise sharply. If the economy creates enough opportunities, this large cohort may support production and generate a demographic dividend. If opportunities are inadequate, unemployment, underemployment, and social pressure may increase instead. The age structure therefore helps us anticipate future needs, but it does not guarantee a particular economic result.

Option A is correct because employment and skill training are direct future requirements of a large youth cohort. Options B and C focus mainly on older dependants and do not follow from the information given. Option D is unrelated and uses an unjustified “only.” The population’s age composition may also increase demand for education, health services, housing, and transport, but among the listed choices, employment and skill training are the clearest answer.

Correct answer: A. High fertility can increase the share of children

Fertility means the level of childbearing in a population. When fertility is high for a period of time, many babies are born, so the share of children, often the 0–14 age group, can become larger. This makes the age structure look younger and may increase the need for schools, vaccinations, nutrition, and child health services. Thus, option A correctly states the general relationship: high fertility can increase the share of children.

The relationship is not an immediate or absolute rule for every single year, because migration, deaths, and the existing age distribution also affect population structure. However, over time, repeated high fertility adds more children to the population. High fertility does not always increase the elderly share, does not have no connection with age structure, and does not directly create only working-age adults. Children enter working ages much later, so option A is the only suitable conclusion.

Correct answer: A. Higher life expectancy can increase the elderly share

Life expectancy is the average number of years a person is expected to live under current mortality conditions. When it rises, more people survive into older ages and remain there for longer. This can increase the proportion of elderly people in the age structure, especially when fertility is also low. The effect is not automatic in exactly the same size everywhere, because migration and birth patterns also matter, but the relationship is demographically meaningful.

Option A is correct. Higher life expectancy does not immediately create more children; children depend mainly on births, so option B is false. It is also incorrect to say that life expectancy has no relationship with age structure, because survival at older ages directly affects that structure. Finally, older people do not become working-age adults when life expectancy rises. They simply have a greater chance of reaching and living through old age, which supports option A.

Correct answer: B. Ageing age structure

An ageing age structure has a relatively small share of children and a relatively large share of older people. In this case, the 0–14 age group is small, while the group above 60 is large, so the population is clearly ageing. This pattern often reflects many years of low fertility together with longer life expectancy, although the exact causes can vary between countries.

Option B is correct. A youthful age structure would show a large proportion of children and usually a smaller proportion of elderly people, which is the opposite of the pattern described. The population is not made up only of working-age people because both children and older people are present. The information is also sufficient to identify the broad type, so “unknown” is not appropriate. Such a structure has important implications for pensions, healthcare, and elder-care services.

Correct answer: A. Pressure from dependent population

Children aged 0 to 14 and people above 60 are commonly treated as dependent groups because many of them are outside the main working-age population. Children require support for food, schooling, health, and protection. Older people may need pensions, medical treatment, assistance with daily activities, and long-term care. If both groups are large, a comparatively smaller working-age population may have to support needs on both sides of the age structure.

This can increase the dependency burden on families, workers, public budgets, and social institutions. Therefore option A, pressure from the dependent population, is correct. A large child and elderly population does not mean that only the labour force is excessive. It does not directly determine mineral production or land availability. The exact dependency level depends on the proportions and on employment, income, and social-support systems.

Correct answer: A. Favorable dependency structure

The dependency structure compares people commonly outside the working ages with those in the potential working-age group. Children and older people are often called dependents because they may require support from working-age adults, although the term does not mean every individual is economically inactive. If the working-age population is large and both dependent groups are relatively small, fewer dependents are supported by a larger potential workforce.

This creates a favorable dependency structure and may provide an opportunity for a demographic dividend. The possible benefit is not automatic: jobs, education, health, skills, and good policies are needed to use the large workforce productively. Therefore option A is correct. Options B and C describe large dependent groups, while D is the opposite of the situation given.

Correct answer: A. Education, health, and employment planning

Age structure divides the population into groups such as children, working-age adults, and older people. Each group creates different social and economic needs. A large child population may require more schools and teachers, a large working-age group may need jobs and training, and a growing elderly group may need health care and pensions. Knowing these proportions helps governments plan capacity before shortages arise.

Option A is correct because education, health, and employment planning all depend strongly on the numbers and proportions of age groups. Age structure alone cannot predict earthquakes, monsoons, or mineral deposits; those subjects require physical, climatic, or geological information. Therefore, the demographic measure is directly useful for broad human-development and service planning, making option A the best choice.

Correct answer: A. It may decline

Child dependency usually compares the number or share of children with the number of people in the working-age group. In a simple form, it can be represented as children divided by the working-age population, often multiplied by 100. If the child share decreases while the working-age group grows, the numerator becomes smaller relative to the denominator.

As a result, child dependency is likely to decline. This can reduce pressure on households and public services related to young children, although the eventual rise of elderly dependency must also be considered as the population ages. Therefore option A is correct. The word “may” is appropriate because exact dependency also depends on the chosen age limits and population data. It cannot become negative, and it need not equal elderly dependency.

Correct answer: A. Elderly dependency pressure

The elderly dependency burden compares the number of older people with the population that is generally of working age. If the working-age group becomes smaller while the elderly group becomes larger, each worker may have to support a greater relative number of older dependants. Thus option A, increased elderly dependency pressure, is the most likely result.

This pressure can appear in several connected areas, such as pensions, public health services, long-term care, and government budgets. The question does not say that the number of children is rising, so child school demand, infant vaccination, and child nutrition are not the direct conclusions. The exact burden depends on employment, retirement ages, productivity, family support, and migration, but the age-structure change clearly points toward a greater old-age dependency challenge.

Correct answer: A. In an ageing population

An ageing population contains a relatively large share of older people and a comparatively smaller share of children. Because fewer children are entering the population, the pressure to expand primary schools may be weaker than in a youthful society. At the same time, more older residents may need regular medical treatment, medicines, rehabilitation, pensions, and long-term care.

Therefore, elderly health services can become a more urgent planning priority than adding many primary-school places. This does not mean that schools are unnecessary; it means that the balance of public needs changes with the age structure. A very young or adolescent population would generally create stronger demand for schools and child services. Hence, choice A best matches the stated age pattern.

Correct answer: A. Where the young population is large

A large young population can create strong future pressure on employment. Children and adolescents do not usually enter the workforce immediately, but as they grow older, many will seek jobs at roughly the same time. This can also increase demand for schools, vocational training, higher education, transport, housing, and public services. The result can be a demographic opportunity if the economy creates enough productive work, but it can become unemployment or underemployment if job creation and skill development are inadequate.

Option A is correct because a large youth cohort will eventually move into working ages and enlarge the potential labour force. Options B, C, and D describe populations with few or no young entrants, so they do not imply rapidly rising future demand for jobs. The word “may” is important: a young population creates potential demand, but the actual outcome depends on education, health, economic growth, and labour-market planning. Therefore, A is the strongest choice.

Correct answer: A. It affects the balance between potential workers and dependents

Age structure shows how a population is divided among children, working-age people, and older people. This division matters for economic development because different age groups have different economic roles and needs. Working-age people can participate in production, earn income, pay taxes, and support public services. Children and many elderly people are more likely to depend on others for care, education, health services, or income.

If the working-age share is large and people can find productive jobs, the economy may benefit from a favorable dependency balance. If dependents form a large share, households and governments may have fewer resources for investment and development. Thus option A correctly identifies the connection between age structure, potential workers, and dependents. Age structure does not change weather, create soil, or alter the physical area of a country. It is a population characteristic with important economic consequences.

Correct answer: A. Youthful population

A population pyramid shows the number or share of males and females at different ages. A very broad base means that many children are being born or that children make up a large part of the population. A narrow top means that relatively few people reach or remain in the oldest age groups, or that older people form a small share. This combination is commonly associated with a youthful population, so option A is correct.

The shape also suggests that fertility has generally been high and that the population may grow quickly if large child cohorts later enter reproductive ages. It does not describe an ageing population, whose pyramid usually has a narrower base and a relatively wider upper section. It cannot mean that only working-age people exist, because the broad base clearly represents children. Nor can it indicate zero births; zero births would make the base shrink drastically. Therefore, the broad base and narrow top support option A.

Correct answer: A. Fertility is low and the working-age group is large

A population pyramid shows how many people belong to each age group. Its base represents children and recent births, while its middle represents adolescents and working-age adults. A narrow base usually means that fewer children are being born, so fertility is relatively low or has been falling. A broad middle means that earlier, larger birth cohorts have reached working ages.

Option A is correct because it matches both features together: low fertility and a comparatively large working-age population. This pattern may occur during demographic transition, before the older population becomes dominant. Option B and C would generally produce a wide base, not a narrow one. Option D is clearly too extreme, because a pyramid with a broad middle contains many non-elderly people. The diagram alone cannot reveal every cause, but A is the strongest interpretation.

Correct answer: A. More people are surviving to older ages

A population pyramid shows the age composition of a population. Its upper part represents older age groups, while the lower part represents children and the middle generally represents working ages. If the upper section becomes wider over time, a larger share of people is reaching and surviving through older ages. This usually reflects longer life expectancy and lower mortality at older ages.

The widening does not indicate rising infant mortality or sharply increasing fertility. It also does not mean that only children are increasing; in fact, the evidence points to a growing elderly population. The exact shape can be influenced by migration and past birth patterns, but the most direct interpretation of a broader upper part is improved survival to old age. Therefore, option A is the correct choice.

Correct answer: A. Greater focus on skills and higher education rather than only primary expansion

The age structure of a population affects the kind of education system that is needed. When the number and share of children decline, the pressure to build many new primary schools may become lower. At the same time, a large working-age population needs relevant skills, vocational preparation, higher education, retraining, and links between learning and employment. Education policy can therefore shift from only expanding basic capacity to improving advanced and job-related learning.

This does not mean primary education should be abandoned. Existing children still need good schools, but the strongest additional priority may move toward skills and higher education. Closing all education or providing education only for older people would be unreasonable. Thus option A is correct because it connects the smaller child population and larger working-age population with a broader, skill-focused education strategy.

Correct answer: A. Relatively low

Pension pressure depends partly on the relationship between people receiving pensions and people who can contribute through work and taxes. When the elderly share is small and the working-age share is large, there may be more potential contributors for each elderly person. This generally reduces immediate demographic pressure on pension systems, although actual pressure also depends on employment, wages, contribution rules, pension coverage, and government policy. Thus the conclusion is relative, not absolute.

Option A is correct because it says pressure is relatively low, not that it disappears. Option B is too strong: a large working-age group does not make pressure necessarily very high. Option C is also incorrect because pension pressure cannot be assumed to be zero; some elderly people still require support and financial conditions matter. Option D confuses two different population groups. The age structure suggests a favourable dependency relationship for pensions in the short term, while future ageing may change it.

Correct answer: A. It may increase

Elderly dependency compares the number of older people with the population in the working-age group. A simple form is elderly population divided by working-age population, often expressed as a ratio or percentage. If the elderly population increases while the working-age group remains stable, the numerator becomes larger and the denominator does not change. The resulting dependency measure will therefore rise, assuming the age definitions and measurement method remain the same. This means more older people may depend on each working-age person or group.

Choice A is correct because an increasing elderly population with a stable working-age base raises elderly dependency. Choice B is an unjustified extreme: the measure cannot automatically fall to zero. Choice C is wrong because the numerator is changing, so the ratio is not fixed. Choice D confuses elderly dependency with child dependency; one does not transform into the other. The key is to examine both parts of the ratio rather than only one age group.

Correct answer: A. It may decline

Child dependency is a ratio, not simply the number of children. It compares the child population with the working-age population, often using a form such as children divided by working-age people and multiplied by 100. If the number of children stays constant while the working-age population increases, the denominator becomes larger. The resulting ratio therefore becomes smaller, assuming the groups are measured over the same population period.

Option A is correct because each working-age person would represent fewer children on average. The ratio cannot become negative, and it is not certain to increase when the numerator is stable but the denominator grows. There is a direct relationship between the two groups, so “no relationship” is also wrong. A lower child-dependency ratio may reduce immediate support pressure and can create more scope for savings, investment, and public spending on development.

Correct answer: A. Lower total dependency ratio

The total dependency ratio compares people usually considered dependent with those in the working-age population. Children and older people are commonly treated as dependents, while working-age people form the denominator. If the working-age group is larger and the numbers of children and elderly people are relatively smaller, the number of dependents per working-age person tends to be lower.

A lower dependency ratio does not mean that every working-age person has a job or that all dependents receive adequate support. It only describes the age composition and the relative size of the dependent groups. Such a structure may give a country an opportunity to benefit from a demographic dividend, but this requires employment, skills, health, and productive institutions. Thus, option A is correct; the other options contradict the stated age pattern.

Correct answer: A. Changes in fertility, mortality, and migration

Age structure means the distribution of a population among age groups. It is not fixed: each year, births add children, deaths remove people from different age groups, and migration may add or remove people of particular ages. Consequently, changes in fertility, mortality, and migration can gradually or rapidly alter the shape of the population pyramid.

High fertility usually increases the proportion of children. Longer life expectancy allows more people to reach older ages, increasing the elderly share. If young adults migrate out, the working-age group may shrink; if they migrate in, it may expand. Mountain height, soil colour, or river direction may affect settlement in some way, but they are not the direct demographic processes that determine age composition. Thus, choice A is correct.

Correct answer: A. It helps explain present needs and future socioeconomic pressures

Age structure divides a population into broad age groups, commonly children, working-age adults, and older people. The size of each group helps planners understand what society needs now and what pressures may appear later. A large child population may require more schools and vaccination services; a large working-age group needs jobs and skills; a growing elderly group needs health care, pensions, and support.

Thus age structure connects population composition with social and economic planning. It does not merely describe maps, rainfall, or mineral reserves. By comparing age groups over time, governments can anticipate dependency, labour supply, education demand, and care requirements. Choice A is therefore correct because it captures both present needs and future socioeconomic pressures.