The World Population Distribution, Density and Growth
Nagaland Board · Class 12 · Geography
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Explore the full setWhat is population distribution and what percentage of world population lives in what percentage of land area?
Answer
Population distribution refers to the way people are spaced over the earth's surface. Broadly, 90% of the world population lives in about 10% of its land area, showing highly uneven distribution patte…
Define population density and write its formula.
Answer
Population density is the ratio between the number of people to the size of land, usually measured in persons per sq km. Formula: Density of Population = Population/Area Example: If Region X has are…
Name the four main geographical factors that influence population distribution.
Answer
The four main geographical factors are: 1. Availability of water - for drinking, agriculture, industries 2. Landforms - flat plains and gentle slopes preferred 3. Climate - moderate climate attracts m…
Why are river valleys among the most densely populated areas of the world?
Answer
River valleys are densely populated because: - Fresh water is easily available for drinking, bathing, cooking - Water supports agriculture through irrigation - Rivers provide transportation routes - F…
List three economic factors that influence population distribution with examples.
Answer
Three economic factors are: 1. Minerals - Areas with mineral deposits attract industries (e.g., Katanga Zambia copper belt) 2. Urbanisation - Cities offer better employment, education, medical facilit…
What is population growth and how can it be expressed?
Answer
Population growth refers to the change in number of inhabitants of a territory during a specific period of time. This change may be positive or negative and can be expressed either: 1. In terms of abs…
Distinguish between Natural Growth and Actual Growth of Population.
Answer
Natural Growth of Population: - Population increase by difference between births and deaths - Formula: Natural Growth = Births - Deaths Actual Growth of Population: - Includes migration along with bi…
Define Crude Birth Rate (CBR) and write its formula.
Answer
Crude Birth Rate (CBR) is expressed as number of live births in a year per thousand of population. Formula: CBR = (B/P) × 1000 Where: CBR = Crude Birth Rate B = Live births during the year P = Estim…
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