world population Flashcards
(27 cards)
What is meant by density of population? Write down mathematical formula to calculate density of population.
Density of population means that how many people are living on one unit (per square mile or per square km) area. Which can be calculated as: Density= total Population/total area
What is meant by growth rate?
Rate of natural increase in the population of any area or a country is known as growth rate. Growth rate of population of the world is 1 .03 % per annum. Growth Rate = Birth Rate - Death Rate (In case of increase in population)
Which continent is least populated in the world?
The continent of Australia is least populated among all continents of the world. This continent occupies about 6 percent land area of the world but possesses only 0.55 percent world population.
Write down factors responsible for density of population? Write down any two reason of un equal distribution of population in the world. What are the factors effecting density of population in Pakistan.
(i)Altitude or height from the sea level (ii)Distance from the equator (iii)Un favourable Physical features (iv)Un favourable climate
Which areas are called unpopulated?
Those areas of the world where Density is less than 4 persons per Sq. Km are considered almost unpopulated. More than 40% area of the earth is unpopulated. .The Arctic and Antarctic and green land regions. .The deserts of Sahara and Kalahari of Africa
.The Atacama Desert of Chile and Peru
The great Australian desert and Arabian Desert. .The rugged and lofty Himalayas
Alps
Rockies and Indies.
Which continent is unpopulated in the world? And why?
Continent of Antarctica is unpopulated in the world.
Which country is on top rank in population in the world? And what is the population of it?
China is the biggest country population wise. Its population was 1
445 million in 2021.
How much population of the world is increasing annually?
Population of the world is increasing 1.03% annually. Population of world is increases 81 million every year.
What is the Malthus theory of population?
Malthus presented his population theory in 1798. He states that, “population should be increases by geometrical method and resources should be increases by mathematical method”. According to his theory the difference between population and resources can be maintained.
What is meant by close population?
Such area of the world where internal and external migration of population from one area to another area is totally zero is called close population.
Write the world’s population approximate in 1750 at the time of industrial revolution.
World’s population in 1750 at the time of industrial revolution was approximately 791 million.
What are the Physical and Socio-Cultural Factors responsible for the growth and distribution of population in the world or Pakistan?
Physical factors: (i)Land Forms (ii)Fertility of Soil (iii)Altitude (iv)Mineral Sources Socio-Cultural factors: (i)Historical Background (ii)Social & Economic Activities (iii)Technology iv)Political Stability (v)Social Organization vi)Availability of Basic Facilities
What is meant Growth Rate? OR What is meant by natural increase in population.
The rate of natural increase in population of country or an area is called growth rate. OR The “population growth rate” is the rate at which the number of individuals in a population increases in a given time period, expressed as a fraction of the initial population. Current growth rate of Pakistan is 2.4% per year. G. R= B. R-D. R
What is meant Birth Rate?
The birth rate (technically
births/population rate) is the total number of live births per 1
000 of a population in a year..
What is meant Mortality rate
or death rate?
Mortality rate
or death rate
is a measure of the number of deaths (in general
or due to a specific cause) in a particular population
scaled to the size of that population
per unit of time.
What is meant by of overpopulation?
If the rate of increase in population is higher than the increase in resources
it is called over population.
Which two continents are densely populated?
Asia and Africa are two densely populated continents. Density of Asia is 148.44 persons per square mile. Density of Africa is 47.9 persons per square meter.
What are three important phases of increase of world population? (BWP-17)
(i) Iron age (ii)Age of agricultural development (iii)Age of industrial development
How much population of the world lives in Northern Hemisphere?
90% of the world population lives in Northern Hemisphere. Its population was 7.23 billion in July 2023.
write a short note on population of Australia.
Australia is the least populated continent of the world. Its population is 46 million in 2023. Its population is 0.55 % of the total population of the world. It is also smallest continent of the world density wise. The situation here is much better as compared to uninhabited regions of the world.
What is meant by arithmetic density or real density?
The total number of people divided by total land area is called Arithmetic density or real density. Physiological density is the number of people per unit area of arable land (land in which crops are grown).
Which continent has highest birth and death rate and why?
Continent of Africa has highest birth and death rate. Lack of education and lack of health facilities are the main reasons of high birth and death rate.
Which countries are very densely populated in the world?
1 china 2 india 3 bangladesh 4 pakistan 5 egypt 6 nigeria 7 japan 8 usa 9 uk
Which countries are densely populated in the world?
Nepal Kuwait Indonesia Uganda Mexico Ukraine Panama North Korea
