Biology · Geography

Population Dynamics

978 Questions

Explore key concepts in population dynamics through these practice questions. The focus is on demographic transition models, population pyramids, and life history theory. These topics are useful for general studies and biology exams.

Demographic transition theoryPopulation pyramidsMathematical growth modelsLife history theory

Population Dynamics Questions

Multiple choice geography population density and distribution population and migration population : size, density, growth and structure population : distribution, density and growth

According to Malthus theory of population, population grow ______________.

  1. Geometrically

  2. Vertically

  3. Horizontly

  4. Linearly
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In his 1798 work, An Essay on the Principle of Population, Malthus examined the relationship between population growth and resources. From this, he developed the Malthusian theory of population growth in which he wrote that population growth occurs exponentially in geometric progression, so it increases according to birth rate.

Multiple choice geography population density and distribution population and migration population : size, density, growth and structure population : distribution, density and growth

The number of people living in a unit area of the earth's surface is called _______.

  1. Birth rate

  2. Death rate

  3. Population density

  4. Life expectancy
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Each unit of land has limited capacity to support people living on it. The ratio between the numbers of people to the size of the land is known as the density of population, usually measured in persons per sq km.

  • Density of Population = Population/ Area.

Multiple choice geography population density and distribution population and migration population : size, density, growth and structure population : distribution, density and growth

The distribution of the population according to different types of occupation is ______.

  1. Occupational structure

  2. Occupation growth

  3. Occupation ratio

  4. Occupation size
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The percentage of population that is economically active is an important index of development. The distribution of the population according to different types of occupation is referred to as the occupational structure. An enormous variety of occupations are found in any country. Occupations are generally classified as primary, secondary, and tertiary.

Multiple choice geography population density and distribution population and migration population : size, density, growth and structure population : distribution, density and growth

What do you mean by the term density of population of a country?

  1. The average number of deaths per annum

  2. The average number of births per annum

  3. The number of people living in one hectare

  4. The number of people living in one square kilometre
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Each unit of land has limited capacity to support people living on it. The ratio between the numbers of people to the size of land is known as the density of population, usually measured in persons per sq km.

Density of Population =Population/ Area.

Multiple choice geography population density and distribution population and migration population : size, density, growth and structure population : distribution, density and growth

In the theory of demographic transition in the last stage:

  1. Birth rate rises, death rate rises.

  2. Birth rate rises, death rate falls.

  3. Birth rate falls, death rate rises.

  4. Birth rate falls, death rate falls.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

To predict the future population of an area, demographic transition theory can be used. This theory explains 3 staged model of demographic transition : 

  • stage (i) High birthrate, high death rate, low growth rate : Example Bangladesh 
  • stage (ii) Initially high birth rate, low death rate, high growth rate- example India 
  • stage (iii) Low birth rate, low death rate, stable or low growth rate - example Japan.

Multiple choice geography population density and distribution population and migration population : size, density, growth and structure population : distribution, density and growth

In general it is observed that the rate of population growth has been ________ in the densely populated areas compared to sparsely populated areas.

  1. Low

  2. High

  3. Negligible

  4. Almost the same
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Growth of population refers to the change in the number of inhabitants of a country/territory during a specific period of time, say during the last ten years. Such a change can be expressed in two ways: in terms of absolute numbers and in terms of percentage change per year. In general it is observed that the rate of population growth has been low in the densely populated areas compared to sparsely populated areas.

Multiple choice commercial applications environmental equilibrium threatened species need of conservation conservation of soil and wild life sleeping time animal senses sense organs in animals

Which of the following migration of population does not change the size of the population?

  1. External migration

  2. Internal migration

  3. International migration

  4. National migration
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Internal migration occurs within the borders of a country, so while it shifts the population distribution, it does not change the total size of the national population.

Multiple choice commercial applications environmental equilibrium threatened species need of conservation conservation of soil and wild life sleeping time animal senses sense organs in animals

Consider the following statements.
(a)  Migration is the movement of people across the regions and territories.
(b)  The rural-urban migration has resulted in a decline in the percentage of the population in cities.
(c)  Migration can be internal as well as external.
(d)  Migration is the important determinant of population change.
Which of the above statements are correct?

  1. (a) and (d)

  2. (a), (c) and (d)

  3. (b) and (c)

  4. (b), (c) and (d)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Migration is the movement of organisms across the regions and territories. It has resulted in a steady increase in the percentage of organisms in that regions. Migration causes population change due to genetic drift, gene flow etc. Thus, the correct answer is option A.

Multiple choice geography international development international development and world population and its impact on resources population growth and impact on resources reproductive health in humans

Over population is a situation when the ________.

  1. Resources are too much for the size of population

  2. Resources are too few for the size of population

  3. Emigration is more than immigration

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Overpopulation is defined as a condition where the existing resources are insufficient to support the current population size, leading to a decline in the standard of living.

Multiple choice geography international development international development and world population and its impact on resources population growth and impact on resources reproductive health in humans

When ______ began to develop, it enabled a steady growth of population.

  1. Agriculture

  2. Fishing

  3. Herding

  4. Hunting
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Even with the absence of market and exchange economy, only the introduction of agriculture enabled the steady growth of population. In this period, the development of agriculture and livestock ranching encouraged spread of population from Mediterranean and South-West Asia to  Central Asia, China, India and even in far east Asia.

Multiple choice geography international development international development and world population and its impact on resources population growth and impact on resources reproductive health in humans

The word __________ is used to describe the distribution of population.

  1. Density

  2. Census

  3. Population

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Density methods are used to describe populations. Density describes how many individuals are in that given space. We might say that there are 100 people per square mile, or 20 plants per square inch. This gives us an idea of how tightly or loosely packed the organisms are in a given space.

Multiple choice geography international development international development and world population and its impact on resources population growth and impact on resources reproductive health in humans

Density of population can be divided into _____________.

  1. regions of high density

  2. regions of low density

  3. regions of moderate density

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The density of the population is expressed as the number of persons per unit area. It helps in getting a better understanding of the spatial distribution of the population concerning land. The density of population can be divided into:

  1. Regions of high density: Some countries have large populations living in a small area. In Bangladesh, people are packed more closely together. Countries like this have a high population density or a dense population. 
  2. Regions of low density: Canada and Australia are large in area but have small populations. These countries have a low or sparse population density.
  3. Regions of moderate density: A moderate population density is somewhere in the middle. These countries average 15 to 150 people per square kilometer. France has 107.8 people per square kilometer, so it has a moderate population density.

Multiple choice geography international development international development and world population and its impact on resources population growth and impact on resources reproductive health in humans

Density of population is calculated as __________.

  1. population divided by the area

  2. area divided by the population

  3. population multiplied by area

  4. population of an area divided by total population
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The density of the population is expressed as the number of persons per unit area. It helps in getting a better understanding of the spatial distribution of the population concerning land. To calculate the population density, you will divide the population by the size of the area. Thus, Population Density = Number of People/Land Area. The unit of land area should be square miles or square kilometers.

Multiple choice geography international development international development and world population and its impact on resources population growth and impact on resources reproductive health in humans

When population of a country is expressed as a number of persons living per unit of land area, it is called ____________.

  1. distribution of population

  2. density of population

  3. migration of population

  4. none of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The density of the population is expressed as the number of persons per unit area. It helps in getting a better understanding of the spatial distribution of the population concerning land. The density of the population in India (2011) is 382 persons per sq km.