Distribution of Population

When two regions have similar climates, other factors become more important in explaining differences in population distribution. Industries provide jobs, while transport improves access to markets and services. Therefore, the region with better industry and connectivity may develop a higher population concentration. The second option is correct. Similar climate does not guarantee similar population distribution. In examinations, recognize the importance of human and economic differences when physical conditions are comparable.

High mountains are generally sparsely populated because relief and climate can be difficult. However, tourism, mining, pilgrimage, strategic routes, or transport hubs can create economic opportunities. This may produce population concentrations in selected valleys or towns. Therefore, the second option is correct. The example shows that human and economic factors can create local population clusters even within difficult physical environments. In examinations, understand exceptions by identifying the specific factors responsible.

Correct answer: A. If a mine closes, mining-related jobs and supporting work may decline. Some people who cannot find other local employment may move elsewhere. This out-migration can reduce the mining town’s population and change its distribution relative to other places.

Correct answer: B. Fertile soil can support productive farming, but crops also need water, and people need reliable water for drinking and other daily needs. If water is scarce, farming and settlement may be difficult, limiting how many people the region can support. Fertile soil generally favours settlement rather than preventing it, and water is needed for more than industry.

Correct answer: D. Conflict can force many people to leave an area over a short period. The place they leave may lose population while places receiving them gain population, changing the distribution rapidly. Soil formation and mountain erosion are generally gradual processes, while a long-term climate average does not describe sudden population movement.

Correct answer: B. Irrigation supplies water that can support agriculture where rainfall is insufficient or unreliable. Farming and related work may then attract people to the irrigated area, increasing population concentration around the belt. This is a possible pattern, not a certainty; the outcome also depends on factors such as soil, investment and access to markets.

Correct answer: D. A new capital can become an administrative and economic centre. Government offices and related jobs may attract workers, businesses and service providers, while new facilities can encourage more people to settle there. Thus, population may increase in an area that was previously remote; the extent of change depends on how the capital develops.

Correct answer: A. A major port supports shipping and trade and may attract related industries and services. These activities create jobs and can draw people to the port city, changing its population distribution. A coastline alone does not guarantee equal population or economic opportunities.

C is correct. Water is essential for daily life, farming, and many economic activities. Improved supply—for example, through pipelines, reservoirs, wells, or treatment systems—may make previously water-scarce places more suitable for living and working. Settlement may therefore increase, though this is not guaranteed.

B is correct. Mountainous terrain can make travel difficult. A road tunnel may shorten or ease a route, improving access to the valley. Better connectivity can support trade, services, and local businesses, which may encourage settlement or population growth. This is possible, not guaranteed.

Fertile agricultural land can support settlement and farming, but it does not guarantee sufficient or suitable employment for all young people. If non-farm jobs, higher-income work, or other economic opportunities are limited, young adults may migrate toward cities or other regions. This can change both the age composition and population distribution of the source region. Therefore, the third option is correct. In examinations, remember that favorable physical conditions do not prevent migration when important human-economic factors such as employment opportunities are weak.

Correct answer: C. A university attracts students and employees, and it supports nearby housing, shops, transport, and other services. If it closes, some students and staff may leave and demand for local services may fall, so the nearby population may decline. The size of the change depends on whether other activities replace the university.

Correct answer: B. Population distribution is not limited to people who live permanently in a place. In a high-altitude region, difficult climate and terrain may limit permanent settlement, but tourism can bring visitors, guides, hotel workers, drivers and temporary service providers during a particular season. Their presence creates a temporary concentration of people. The number may fall again when the tourist season ends. A is wrong because a high-altitude region can have permanent residents even if their number is small. C is wrong because tourism does not remove cold, snowfall or other climatic influences. D is wrong because seasonal tourism causes numbers to change during the year. Memory cue: seasonal activity produces seasonal population concentration, not necessarily permanent settlement.

Correct answer: B. Age composition tells us how many children, working-age people, and elderly people live in a population. Different age groups require different services. If the number of children falls, fewer new places may be needed in schools, although existing schools may still remain important. If the elderly population increases, the need for hospitals, regular medical care, medicines, accessible transport, social support, and care facilities may rise. Therefore, option B correctly connects demographic composition with service planning. Option A is wrong because it ignores the falling child population and the growing need for elderly care. Option C is wrong because age structure directly helps planners estimate demand for education and health services. Option D is too absolute: service patterns may change even when the total population changes slowly. Memory cue: children mainly raise education demand; an ageing population raises health and care demand.

Correct answer: B. Births and deaths determine natural increase, while migration changes the location of people. A high birth rate may add population, but continuous out-migration may remove people or redistribute them elsewhere. Therefore, examining only the birth rate gives an incomplete picture. We must consider natural increase together with migration and, where relevant, death rates and the direction of movement. A ignores an important population process. C and D may influence settlement, but neither explains the complete result alone. Memory cue: population patterns reflect both natural change and human movement.

Correct answer: A. Population distribution means the way people are spread across an area. A large dam project creates construction work, transport links, housing, markets, schools, health services, and other facilities. Workers may first arrive temporarily, and some may later settle permanently with their families. As a result, a concentration of people, or a population node, can develop around the project site. Option A is correct because it describes this possible settlement effect. Option B is wrong because dams do not always reduce population; some people may be displaced, but new settlements can also attract workers. Option C is wrong because a dam can influence employment, transport, and settlement, not only river depth. Option D is wrong because major infrastructure can clearly affect settlement patterns. Memory cue: infrastructure plus jobs often creates a population node, although displacement may occur elsewhere.

Correct answer: A. An airport is a transport node that can improve connectivity and attract business activity. Business parks may create jobs in offices, logistics, hotels, retail, maintenance, and transport. Workers may seek housing nearby, while roads, shops, and other services develop around the growing corridor. This can increase population concentration in selected areas around the airport, although the exact pattern depends on planning and local conditions. Option A is correct because it describes a possible settlement effect. Option B is wrong because airports can attract people through employment and improved access. Option C is wrong because airport development can influence jobs, services, and settlements, not only the runway. Option D is wrong because new economic nodes often affect population patterns. Memory cue: transport connectivity plus employment can produce corridor growth.

Correct answer: D. Irrigation can make more land productive, but extensive use of machinery can reduce the number of workers needed for farming. As a result, agricultural output may rise without creating many additional jobs, so the area may attract fewer new residents than expected. Irrigation does not always reduce population, and the other options are not necessary consequences of irrigation or mechanization.

Correct answer: B. When polluted river water is not treated adequately, it can pose health risks and make daily life more difficult for people who depend on it. Some households may therefore move to places with cleaner water or better treatment. This is a possible response, not something that every household will do.

Correct answer: C. A highway improves access, and industries and housing built beside it can attract workers and residents to the route. Settlements may then extend along the highway, creating a linear concentration. This does not mean that the whole country becomes uniformly populated or that all other areas lose their population.

Correct answer: D. A severe earthquake can displace people by damaging homes, workplaces and essential services. If reconstruction is slow, some displaced people may establish homes elsewhere instead of returning. This can shift population distribution over time; it does not mean that everyone will move or that all migrants will return at once.

Correct answer: C. Universities increase the supply of skilled graduates, and local innovation firms can provide jobs that use those skills. When education and suitable employment are available in the same area, some graduates may choose to stay, increasing the local retention of skilled people. This is a possible effect, not a certainty for every graduate.

Correct answer: A. A central business district, or CBD, is a part of a city where offices, shops, banks, and services are concentrated. Many people work or conduct business there but do not live there. During the day, employees, customers, students, and visitors travel into the CBD. After work or shopping, many of them return to homes in other neighbourhoods. Consequently, the number of people present in the CBD during the day can exceed the number of permanent residents recorded there. B is wrong because people do not become double at night; the daily movement is between places. C is wrong because weather is not the main explanation. D is wrong because buildings provide space for activities but do not themselves create people. Memory cue: daytime population counts people present for work and services, whereas permanent population counts people who live there.

Correct answer: B. A university town attracts students, teachers, administrative workers, service workers, and businesses. These people need housing, food, transport, shops, and other services. Nearby villages may supply some of these needs, especially when land and accommodation are cheaper there than in the town centre. Better roads and services may also encourage new households and businesses to settle in selected villages. Therefore, population growth and settlement transformation may occur in some nearby villages, although the effect will not be identical everywhere. A is wrong because villages do not automatically disappear; some may grow or change. C is wrong because education can attract people and activities as well as cause some migration. D is wrong because the question concerns the influence of a university town, not rainfall. Memory cue: a new urban centre can spread housing, jobs, and services into its rural surroundings.

Correct answer: B. World population is unevenly distributed because places differ in climate, relief, water supply, soil, resources, jobs, transport, technology, services, and policy. These factors do not work separately. For example, a dry region may attract workers through employment but still face limits because water is scarce. Migration also changes patterns by moving people toward opportunities or away from hardship. A is wrong because physical conditions alone cannot explain cities, industrial areas, or migration destinations. C is wrong because the same factor can have different effects in different social, economic, and environmental settings. D is wrong because population distribution changes with development, disasters, policy, and migration. B is the strongest conclusion because it recognises interaction and change rather than a single cause. Memory cue: ask “nature, opportunity, and movement” together.