Transcript
POWERPOINT PRESENTATION
OF
TOPIC:POPULATION
BY:ASHISH
IX-BO6
POPULATION
A population is a summation of all the organisms of the same group or species, who live in the same geographical area, and have the capability of interbreeding.[1][2] In ecology the population of a certain species in a certain area is estimated using the Lincoln Index. The area that is used to define a sexual population is defined as the area where inter-breeding is potentially possible between any pair within the area. The probability of interbreeding is greater than the probability of cross-breeding with individuals from other areas. Under normal conditions, breeding is substantially more common within the area than across the border.[3]
population
POPULATION OF INDIA
The demographics of India are inclusive of the second most populous country in the world, with over 1.21 billion people (2011 census), more than a sixth of the world's population. Already containing 17.5% of the world's population, India is projected to be the world's most populous country by 2025, surpassing China, its population reaching 1.6 billion by 2050.[4][5] Its population growth rate is 1.41%, ranking 102nd in the world in 2010.[6]
Indian population reached the billion mark in 2000.India has more than 50% of its population below the age of
25 and more than 65% below the age of 35. It is expected that, in 2020, the average age of an Indian will be 29 years, compared to 37 for China and 48 for Japan; and, by 2030, India's dependency ratio should be just over 0.4.[7]
FACTORS AFFECTING POPULATION
THERE ARE THREE MAIN FACTORS FOR CHANGE OF POPULATION.THEY ARE:-
BIRTH RATE DEATH RATE MIGRATION THE NATURAL INCREASE OF POPULATION IS THE
DIFFERENCE BETWEEN BIRTH RATES AND BEATH RATES PLUS POSITIVE AND/OR NEGATIVE MIGERATION(i.e. PEOPLE MIGRATING INSIDE THE COUNTRY AND PEOPLE MIGARATING OUTSIDE THE COUNTRY.
BIRTH AND DEATH RATES
BIRTH RATE IS THE NUMBER OF LIVE BIRTHS PER THOUSAND IN A YEAR.IT IS A MAJOR COMPONENT OF GROWTH BECAUSE IN INDIA,BIRTH RATES HAVE ALWAYS BEEN HIGHER THAN THE DEATH RATES.
DEATH RATE IS THE NUMBER OF DEATHS PER THOUSAND IN A YEAR.THE MAIN CAUSE OF THE RATE OF GROWTH OF INDIAN POPULATION HAS BEEN THE RAPIUD DECLINE IN DEATH RATES.
MIGRATION OF PEOPLE
MIGRATION REFERS TO THE MOVEMENT OF PEOPLE FROM ONE PLACE TO another in search for jobs and land
INTERNAL MIGRATION DOES NOT CHANGES THE SIZE OF THE POPULATION BUT INFLUENCES THE DISTRIBUTION OF POPULATION WITHIN THE NATION. IN INDIA, MOST MIGRATION HAS BEEN FROM RURAL TO URBAN AREAS BECAUSE OF THE “PUSH” FACTOR IN RURAL AREAS.
Population growth
Historical population of India
Census Pop. %±
1951 361,088,000 —
1961 439,235,000 21.6%
1971 548,160,000 24.8%
1981 683,329,000 24.7%
1991 846,387,888 23.9%
2001 1,028,737,436 21.5%
2011 1,210,193,422 17.6%
Age structure
0-14 years: 29.7% (male 187,450,635/female 165,415,758)
15-64 years: 64.9% (male 398,757,331/female 372,719,379)
65 years and over: 5.5% (male 30,831,190/female 33,998,613)
Median age
total: 26.5 years male: 25.9 years
female: 27.2 years
Fertility rate
2.58 children born/woman
Goa – the lowestUttar Pradesh – the highest
Crude birth rate trends in India(per 1000 people, national average
Population density
Rank City name State/UT Pop.
1 Mumbai Maharashtra 12,478,447
2 Delhi Delhi 11,007,835
3 Bangalore Karnataka 8,425,970
4 Hyderabad Andhra Pradesh 6,809,970
5 Ahmedabad Gujarat 5,570,585
6 Chennai Tamil Nadu 4,681,087
7 Kolkata West Bengal 4,486,679
8 Surat Gujarat 4,462,002
9 Pune Maharashtra 3,115,431
10 Jaipur Rajasthan 3,073,350
urban population: 30% of total population rate of urbanization: 2.4% annual rate of change
Literacy rateState/UT Code India/State/UT Literate Persons (%) Males (%) Females (%)
10 Bihar 63.82 73.39 53.33
32 Kerala 93.91 96.02 91.98
INDIA 74.04 82.14 65.46
Infant mortality rate
total: 46.07 deaths/1,000 live births
Life expectancy at birth
total population: 67.14 years male: 66.08 years female: 68.33 years
India’s Share of worlds population
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