Distribution of Population

Correct answer: A. New settlements developing in an arid region through irrigation and desalination

Explanation: Natural conditions such as extreme dryness can limit settlement because people need dependable water for drinking, farming and other activities. Technology can reduce this limitation by bringing or producing water where it is scarce. It does not make the desert completely free of difficulties, but it can make selected locations more suitable for habitation and economic work.

Irrigation carries water to fields, while desalination converts seawater into usable freshwater. Together, these methods can support crops, households, industries and new settlements in an arid region. The other choices describe worsening conditions, restricted access or industrial withdrawal; none shows technology overcoming a natural barrier. Therefore, option A correctly demonstrates the reduced effect of natural limitation.

Correct answer: A. A stable and secure region can attract investment, employment and settlement

Explanation: Political stability means that people can expect safety, predictable laws, and orderly public administration. Such conditions encourage businesses to invest, create factories and services, and provide jobs. They also make it easier to build schools, hospitals, roads, and housing. As opportunities and security improve, workers and families may move into the region, so settlement can become denser. Therefore, option A gives the most suitable relationship. The other choices use absolute or incorrect statements: instability does not always increase dense settlement, security clearly affects migration, and political conditions do not affect only climate.

The question asks how a political condition influences population distribution. A stable and secure area can attract both investment and migrants because people prefer places where their lives, property, and employment are safer. This does not mean every stable area becomes densely populated, since relief, climate, and resources also matter. It means stability is an important favourable factor. Hence option A is correct.

Correct answer: A. Because of combined advantages of water, transport, agriculture, trade and defence

Explanation: Rivers supported settlement in several connected ways. They supplied water for drinking and irrigation, fertile alluvial land for farming, and fish as food. Boats could carry people and heavy goods more cheaply than land routes, so river towns became centres of exchange. River valleys also often connected different regions and could offer defensive advantages. These combined benefits encouraged an initial settlement to grow into a major city.

Choice A is correct because it includes the main physical and economic advantages together. The other choices use absolute or opposite claims. Rivers can flood, riverbank soils can change, and rivers generally support rather than prevent industry and trade. Population became dense because water, food, movement, employment and commerce were available in the same broad area.

Correct answer: A. If the interior is mountainous while ports, plains and services are concentrated on the coast

Explanation: An island’s population becomes strongly coastal when the interior is difficult to occupy or use, while the coast offers better physical and economic conditions. Mountainous interiors may have steep slopes, thin settlement space, difficult transport, and limited services. Coastal plains, ports, fisheries, roads, markets, and public facilities can therefore attract people and employment.

Option A is correct because it combines both the main restricting factor inland and the main attracting factors along the shore. A flat, fertile interior would usually encourage inland settlement, not coastal concentration. Lack of coastal transport would reduce the coastal advantage, and inland economic activity would pull people away from the coast. The answer is therefore A.

Correct answer: A. Whether the region is inaccessible, disease-prone, conflict-affected or economically isolated

Explanation: Fertile soil and sufficient rainfall are important advantages, but they do not guarantee a large population. People also need safe access, transport, markets, health conditions, political stability and employment. A region may be agriculturally suitable yet remain sparsely settled if it is remote, affected by disease or conflict, or poorly connected to economic centres. Population distribution therefore depends on interacting physical, social and economic conditions.

Option A is correct because it asks about the most useful additional information: inaccessibility, disease, conflict and economic isolation could explain why settlement remains low despite good soil and rainfall. The other choices concern sunset time, colour preferences or the name of day length; none directly explains accessibility, safety, livelihoods or the ability of people to settle. A good geographical investigation would examine these barriers together rather than assume nature alone determines population density.

Correct answer: A. Areas with high agricultural productivity supported permanent and dense settlement

Explanation: Agriculture strongly influenced where people lived in the past. When communities learned to grow crops regularly, they no longer had to move constantly in search of food. Productive land provided reliable food, while extra grain could support workers, traders, rulers, and craftspeople. This encouraged villages, towns, and eventually cities to become permanent and densely populated.

Therefore, option A is correct. Fertile plains and river valleys generally offered suitable soil, water, and level land, so they supported both farming and large settlements. Option B ignores this important relationship. Options C and D are incorrect because agriculture was not limited to deserts, and dense settlement did not always destroy farming; in many cases, farming helped create dense settlement.

Correct answer: A. Markets and towns rapidly developing in a valley after a highway is built

Explanation: Accessibility means how easily a place can be reached and connected with people, markets, services, resources, and investment. Good accessibility can lower travel time and transport costs. It may help farmers sell products, allow workers to reach jobs, encourage businesses, and support schools, hospitals, shops, and new settlements. Therefore, accessibility is an important human factor affecting where population becomes concentrated.

Option A shows this process clearly. When a highway is built through a valley, movement becomes easier, so markets and towns may grow rapidly along the route. The other options describe natural events that do not demonstrate improved access to a place. Sunrise, weathering, and tides may be geographical processes, but none connects a settlement to transport, trade, or services. Hence, A is the best choice.

Correct answer: A. They can also support irrigation, transport, fertile sediments, energy and urban development

Explanation: A river system is much more than a source of drinking water. Rivers can supply water for irrigation, carry fertile sediments that improve agricultural land, provide routes for transport, support hydropower generation, and supply water for industries and cities. These connected benefits are especially important in plains, where flat land allows farming, settlements, roads, industries, and urban centres to expand along river valleys and floodplains, though flood risks must also be managed.

Option A is correct because several economic and social activities depend on river systems at the same time. Options B, C, and D are either far too limited or incorrect: rivers do not merely lower temperature, do not increase mountain height, and cannot automatically prevent every flood. Their combined role helps explain why many fertile river plains have become densely populated.

Correct answer: A. Because lower temperatures, steeper slopes and transport difficulties increase

Explanation: Many mountain regions become less suitable for dense settlement as altitude rises. Temperature usually falls, the growing season may become shorter, slopes become steeper, and building roads, houses and farms becomes more difficult. At very high elevations, thinner air and limited services can add further difficulties.

Option A combines the main physical and practical reasons: colder conditions, steep relief and transport problems. These factors reduce agricultural possibilities, raise construction costs and limit access to markets and services. The words “generally” and “many” are important because some high places can have settlements due to tourism, mining or adaptation. The other choices make absolute claims that are false.

Correct answer: A. Political factor

Explanation: Population distribution is influenced by physical, economic, social, political and other factors. A political factor includes decisions made by governments, security rules, borders, military zones and restrictions on land use. Such rules can prevent ordinary people from settling in an area even when the climate, soil or water might otherwise allow settlement.

Here, the region is closed to civilian settlement because of security concerns. The restriction is created and enforced through public policy and control of territory, not by soil, climate or astronomy. Therefore option A, Political factor, is correct. Climate factor only would be relevant if temperature or rainfall were the main reason for the limited settlement.

Correct answer: A. An old trading town developing into a metropolis over time

Explanation: Historical activities often leave a lasting geographical imprint. A town that once served as a trading, administrative, religious, or transport centre may accumulate roads, markets, institutions, buildings, and social networks. Later development usually builds on this existing foundation. As a result, an old trading town can gradually become a large modern city or metropolis, even when the original trading activity is no longer its only function.

Option A is correct because it directly connects a past activity with present population distribution. People and investment often continue to concentrate where earlier generations created infrastructure and economic links. Daily temperature change, formation of sea waves, and metamorphism of rocks are natural processes, but none of these examples specifically shows a historical human factor shaping the location of a modern metropolis.

Correct answer: A. When fertile plains and water sources are available only in selected areas

Explanation: Population tends to gather where people can obtain food, water, and suitable land. If most of a country is mountainous, dry, rocky, or otherwise difficult to cultivate, farming cannot be spread evenly. A few fertile plains or valleys with dependable water then become especially valuable. Farmers, workers, markets, and services are attracted to those places, producing concentrated settlement.

Option A gives exactly this condition and is correct. If fertile land were evenly available, as in option B, population would have more opportunities to spread out. Equal water availability and equal transport alone do not explain concentration when cultivable land is not restricted. Thus the combination of limited suitable land and selected fertile, well-watered areas is the strongest explanation.

Correct answer: A. Pressure will increase in the core city and some people may settle in suburbs or outer areas

Explanation: Population distribution responds to both employment and housing costs. More jobs can attract workers to a metropolitan region, increasing demand for accommodation and services. If housing in the central city becomes too expensive, some workers may live in suburbs, peripheral towns, or farther settlements where homes are more affordable. They may continue to work in the metropolitan region, using public transport, roads, or remote and hybrid work arrangements. Thus growth can spread outward rather than affect only the core.

Option A is correct because it describes this combined effect: employment raises attraction, while high housing costs push some residents away from the central area. Option B is too absolute because not everyone will leave. Options C and D ignore the strong influence of jobs and housing prices on spatial decisions. The outcome depends on transport, household income, services, and available land.

Correct answer: A. Repeated severe hazards can encourage migration or lower settlement density in risky areas

Explanation: Natural hazards can change where people live because they affect safety, property and livelihoods. Repeated floods, cyclones, earthquakes, volcanic events or landslides may make residents leave, discourage new arrivals and reduce the density of settlement. The effect is not identical everywhere: strong buildings, warning systems, insurance, protective works and good incomes may allow people to remain, while weak protection can increase migration. Hazards influence distribution but do not determine it mechanically.

Option A is correct because it uses careful language: repeated severe hazards can encourage migration or lower settlement density. Option B is wrong because hazards do not always increase population; option C ignores their effects on safety and livelihoods; and option D is too absolute, since many risky places remain inhabited. The correct conclusion is probabilistic and conditional, not that every hazardous region becomes empty.

Correct answer: A. Prolonged unemployment and resource scarcity

Explanation: A push factor is a condition that makes people want to leave a place. It usually creates difficulty, insecurity, or fewer opportunities in the area of origin. Long-term unemployment means that people cannot find regular work, while resource scarcity can limit access to water, land, food, or other means of livelihood. Together, these conditions can make staying difficult and encourage migration to another region.

Option A is therefore correct because it describes pressures that push residents away. Options B, C, and D describe jobs, safety, transport, education, and health services. These are attractive conditions in a destination and are generally pull factors, not push factors. The question asks specifically for a factor that drives people out, so prolonged unemployment and resource scarcity are the best choice.

Correct answer: A. High concentration in the developed part and relatively sparse settlement in the interior

Explanation: Population is rarely spread evenly across a country. Development usually brings jobs, schools, hospitals, transport, markets, and investment. These facilities make one region more attractive, while a large underdeveloped interior may offer fewer opportunities and weaker services. People therefore tend to gather in the developed part, producing a clear contrast between a dense core and a sparsely settled interior. This is the pattern described by option A.

The other choices are not suitable. Complete uniformity ignores differences in employment and infrastructure. The interior does not automatically become denser merely because it is large, and development clearly can influence where people live. The question asks about a likely general pattern, not an absolute rule; physical conditions and government policies may also matter, but the strongest stated influence is concentrated development.

Correct answer: A. New technology, industry, transport and migration can make previously sparse areas more populated

Explanation: Population distribution is not permanently fixed. It changes as people respond to new opportunities, improved transport, technology, government decisions, resource use and migration. A place that was once remote, difficult to use or economically unimportant may attract many residents when these conditions improve.

Option A is correct because it directly explains this change through technology, industry, transport and migration. Options B and D wrongly describe distribution as unchanging, while C is too narrow: population patterns can change even when the physical environment does not change, because human and economic factors also matter.

Correct answer: A. High agricultural productivity, water availability, transport and major economic opportunities coexist

Explanation: A delta can attract many people even when floods are possible because it may provide several strong advantages at the same time. Fertile alluvial soil supports productive farming, water helps irrigation and daily life, and flat land makes building and transport easier. Ports, cities, industries, fishing, and trade can create additional employment.

Thus, people may accept some flood risk when the economic and living benefits are very high, especially where embankments, drainage, warnings, or other protective measures reduce danger. Option A is correct because it combines agriculture, water, transport, and economic opportunities. The other options describe conditions that generally discourage dense settlement.

Correct answer: A. A city with major education, finance, health and information technology centres

Explanation: The service sector includes activities such as education, health care, banking, finance, administration, information technology, communication, and professional services. A city that contains major institutions in these fields offers employment not only to teachers, doctors, programmers, and managers, but also to drivers, retailers, cleaners, technicians, and many other workers. Families therefore move to such cities for jobs, education, and services, producing population concentration.

Option A is correct because it describes a strong service-based urban centre. An uninhabited ice field, a roadless high mountain, and a waterless desert interior generally lack the accessibility, water, infrastructure, and institutions needed to support large service economies. Those places may have special activities, but they do not best illustrate service-led concentration. Hence A follows directly.

Correct answer: A. Settlement may remain limited because water is a basic requirement

Explanation: A favourable climate can make a place comfortable, but climate alone cannot provide the water needed for drinking, sanitation, food production and many economic activities. Severe shortage of safe water therefore remains a strong limitation on settlement. People may live there if pipelines, storage, recycling or other supplies are available, but without such alternatives the population is likely to remain limited or unevenly distributed.

Option A is the most balanced conclusion because it recognises water as a basic requirement while allowing for possible solutions. Option B wrongly treats climate as a complete substitute for water. Option C assumes that population must automatically become very high, and option D ignores domestic and agricultural needs. Thus, the likely effect is restricted settlement, making A correct.

Correct answer: A. The region may attract additional population because of both agriculture and industry

Explanation: A fertile agricultural region already attracts people because it can provide food, farm work, raw materials, and rural livelihoods. An industrial city nearby adds another set of opportunities, including factory employment, construction, transport, trade, administration, and services. These activities can reinforce one another: agriculture supplies food and materials, while industry creates markets, jobs, and improved infrastructure. The combined attraction may increase population.

Option A is therefore the most reasonable conclusion. The word “may” is important because population growth is likely, not absolutely guaranteed; it also depends on wages, housing, transport, and environmental conditions. Options B and D use absolute claims that are not justified, while option C wrongly assumes that industrial development immediately changes climate.

Correct answer: A. When it provides markets, administration, education and health services to the surrounding area

Explanation: A central place is a settlement that serves people living in nearby villages and smaller towns. Its importance grows when it offers markets, government offices, schools, hospitals, transport, banking, and other regular services. Such facilities attract people not only for visits but also for jobs, trade, education, and health care. Therefore, population may become more concentrated around the central place than in surrounding areas.

Option A is correct because the availability of several services creates economic and social attraction. People can reach necessary facilities more easily, while businesses and workers also find opportunities there. Options B, C, and D describe conditions that reduce accessibility or employment, so they would usually discourage concentration rather than increase it.

Correct answer: A. Trade, technology and transport can support large populations dependent on distant resources

Explanation: Natural carrying capacity refers broadly to how many people local land, water, food and ecosystems can support under particular conditions. However, human settlements are connected through trade and infrastructure. A city may import food from distant farms, energy from other regions and raw materials from abroad. Technology can improve water supply, storage, production and transport, while institutions organize these flows. Consequently, local environmental limits matter, but they are modified by wider economic and social systems.

Option A is correct because trade, technology and transport can support a large population that depends on resources from elsewhere. Option B is too narrow because regions are not limited to local food. Option C denies the clear role of technology, and option D uses an incorrect absolute claim. The question tests a systems view: population distribution reflects both local ecological conditions and connections to external resources and opportunities.

Correct answer: A. Studying the interaction of physical, economic, social, political, historical and technological factors

Explanation: World population distribution is produced by many connected influences rather than by one isolated cause. Climate, relief, water and soils create basic conditions, while jobs, transport, services, technology, political decisions and historical development affect where people can live and work. These factors may strengthen or weaken one another in different regions.

Therefore option A gives the most complete approach: study the interaction of physical, economic, social, political, historical and technological factors. Climate alone or farmland alone cannot explain dense cities, industrial belts, sparse deserts and changing settlement patterns. Counting present-day cities only describes a result, not the causes behind it.

Correct answer: C. Habitability will improve, but financial risks may limit population growth.

Explanation: C is correct. Geothermal heating can make a cold, high-altitude valley more comfortable in winter, but it does not remove avalanche risk. If insurance against that risk is very expensive, the cost of living there may discourage some people from settling permanently. The improved comfort may attract residents, while the financial risk may constrain growth; the question gives no basis for predicting an automatic increase of a specific size.