10th Geography6. PopulationExercises
10th Geography
6. Population
Exercises
Q 1. Are the following sentences right or wrong?
Correct the wrong ones.
(a) Literacy Rate is higher in Brazil than India.
Ans: Right
(b) In Brazil, people prefer living in the south east as compated to the north east.
Ans: Right
(c) The life expectancy of Indians is decreasing.
Ans: Wrong
(d) The north-western part of India is densely populated.
Ans: Wrong
(e) The western part of Brazil is densely populated.
Ans: Wrong
Q 2. Answer the questions as per the instructions :
(a) Arrange the following states of India in
descending order of their population.
Himachal Pradesh, Uttar Pradesh,
Arunachal Pradesh, Madhya Pradesh,
Andhra Pradesh
Ans: Descending order: Utter Pradesh, Madhya Pradesh, Andha Pradesh, Himachal Pradesh, Aruna chal Pradesh
(b) Arrange the states of Brazil in ascending order of their population: Amazonas, Rio de Janeiro, Alaguas, Sao Paulo, Parana
Ans: The states of Brazil in ascending order of their population: Alagoas, Amazonas, Parana, Rio De Janeiro Sao Paulo.
(c) Classify the factors affecting the distribution of population into favourable and unfavourable.
Nearness to sea, lack of roads, temperate climate, lack of industries, new cities and towns, tropical moist forests, minerals, semi-arid climate, cultivable land.
Ans:
Q 3. Answer the following questions:
(a) Explain the similarities and differences
between the population distribution in Brazil and India.
Ans: The similarities between the population distribution in Brazil and India.
1. In Brazil as well as in India, population is very unevenly distributed.
2. Inaccessible dense forests and absence of facilities are the barriers to human settlements.
3. North, north west and north east of both the countries are the regions of low population.
4. Population is concentrated in flat fertile regions which have abundant water resources, transport facilities, mild climate and development of agriculture industries and trade in the plain region.
5. Coastal regions are densely populated in Brazil and in India.
[ ] The differences between the population distribution in Brazil and India.
1. The average density of population in India is 382 persons per sq.km. and that of Brazil is about 23 persons per sq.km.
2. Though the area of both the countries is occupied
by vast river basins, the distribution of population is extremely opposite in both the river basins.
3. The Amazon River Basin is sparsely populated while the Ganga River Basin is densely populated.
(b) Giving examples, correlate climate and
population distribution.
Ans: Climate and population distribution both are interrelated. Temperature and rainfall affect on the concentration of population.
1. Dense population is concentrated in the regions with mild temperature and moderate rainfall. For example the coastal plains of Brazil, Northern and coastal plains of India.
2. Regions with havet rainfall , dense forest and inaccessiblity have low population. For exam. Region of Amazon basin, North part of Brazil , North and northeastern States of India.
3. Population is sparse due to less rainfall and extreme climatic conditions.For example Draught quadrilateral in Brazil and Thar desert in Rajasthan,India.
Q 4. Give geographical reasons:
(a) Population is an important resource.
Ans: Population is an important resource because
1. The qualitative population helps a nation's economic growth and social development.
2.Natural resources can be utilized properly by population.
(b) Brazil’s population density is very less.
Ans: Brazil is the most populated country in the
South American continent. With a population of around 19 crores, according to Census 2010, it ranks 5th in the world . It is also the fifth in the world with respect to area. Brazil occupies 5.6 % of world’s total land and has 2.78% of world’s total population. Therefore, the density of population is around 23 persons per sq.km.
(c) India’s population density is high.
Ans: India’s population is around 121 crores according to Census 2011. India is the second most populous country in the world. India occupies only 2.41 per cent of the land area of theworld whereas it supports 17.5 % of the world’s population. India’s average population density is 382 persons per sq.km. as per 2011 Census.
(d) The density of population is sparse in Amazon basin.
Ans: the interior in the Amazon Basin is very sparsely populated. Unfavorable climate, heavy rainfall, inaccessibility and dense forests are the barriers to development of human settlements here. Therefore, settlements occur only in few places in the Amazon basin.
(e) Population density is high in the Ganga plains.
Ans: Ganga plains are fertile low lying plains formed due to the depositiona work of River Ganga and its tributaries.
Mild climate, moderate rainfall and fertile soil have led to the development of agri5and industries. This region also has a good transport facilities.
So, Population density is high in the Ganga plains.
Q 5. Observe the following diagram and answer the questions.
(A) Compare and classify the population densities shown in the squares ‘a’ and ‘b’ representing 1sq.km of area.
Ans; In figure a, the density of the population is 7 persons per sq.km hence its sparsely populated.
In figure b, the density of the population is 18 persons per sq.km hence its densely populated.
(B) If in figure B, one sign = 100, then what will be the sex ratio?
Ans: 1.One symbol shows = 100 persons.
2. There are 10 Female symbols.
Hence, Number of females = 100 × 10 = 1000
3. There are 8 Male Symbols
Hence ,Number of Males = 100 ×8 = 800
Males 800
Females 1000
If 1000 Males are there then how many females will be there?
number of females = 1000 × 1000÷ 800 = 1250
Hence, the sex ratio is 1250 females per 1000 males.
6. Population
Exercises
Q 1. Are the following sentences right or wrong?
Correct the wrong ones.
(a) Literacy Rate is higher in Brazil than India.
Ans: Right
(b) In Brazil, people prefer living in the south east as compated to the north east.
Ans: Right
(c) The life expectancy of Indians is decreasing.
Ans: Wrong
(d) The north-western part of India is densely populated.
Ans: Wrong
(e) The western part of Brazil is densely populated.
Ans: Wrong
Q 2. Answer the questions as per the instructions :
(a) Arrange the following states of India in
descending order of their population.
Himachal Pradesh, Uttar Pradesh,
Arunachal Pradesh, Madhya Pradesh,
Andhra Pradesh
Ans: Descending order: Utter Pradesh, Madhya Pradesh, Andha Pradesh, Himachal Pradesh, Aruna chal Pradesh
(b) Arrange the states of Brazil in ascending order of their population: Amazonas, Rio de Janeiro, Alaguas, Sao Paulo, Parana
Ans: The states of Brazil in ascending order of their population: Alagoas, Amazonas, Parana, Rio De Janeiro Sao Paulo.
(c) Classify the factors affecting the distribution of population into favourable and unfavourable.
Nearness to sea, lack of roads, temperate climate, lack of industries, new cities and towns, tropical moist forests, minerals, semi-arid climate, cultivable land.
Ans:
Q 3. Answer the following questions:
(a) Explain the similarities and differences
between the population distribution in Brazil and India.
Ans: The similarities between the population distribution in Brazil and India.
1. In Brazil as well as in India, population is very unevenly distributed.
2. Inaccessible dense forests and absence of facilities are the barriers to human settlements.
3. North, north west and north east of both the countries are the regions of low population.
4. Population is concentrated in flat fertile regions which have abundant water resources, transport facilities, mild climate and development of agriculture industries and trade in the plain region.
5. Coastal regions are densely populated in Brazil and in India.
[ ] The differences between the population distribution in Brazil and India.
1. The average density of population in India is 382 persons per sq.km. and that of Brazil is about 23 persons per sq.km.
2. Though the area of both the countries is occupied
by vast river basins, the distribution of population is extremely opposite in both the river basins.
3. The Amazon River Basin is sparsely populated while the Ganga River Basin is densely populated.
(b) Giving examples, correlate climate and
population distribution.
Ans: Climate and population distribution both are interrelated. Temperature and rainfall affect on the concentration of population.
1. Dense population is concentrated in the regions with mild temperature and moderate rainfall. For example the coastal plains of Brazil, Northern and coastal plains of India.
2. Regions with havet rainfall , dense forest and inaccessiblity have low population. For exam. Region of Amazon basin, North part of Brazil , North and northeastern States of India.
3. Population is sparse due to less rainfall and extreme climatic conditions.For example Draught quadrilateral in Brazil and Thar desert in Rajasthan,India.
Q 4. Give geographical reasons:
(a) Population is an important resource.
Ans: Population is an important resource because
1. The qualitative population helps a nation's economic growth and social development.
2.Natural resources can be utilized properly by population.
(b) Brazil’s population density is very less.
Ans: Brazil is the most populated country in the
South American continent. With a population of around 19 crores, according to Census 2010, it ranks 5th in the world . It is also the fifth in the world with respect to area. Brazil occupies 5.6 % of world’s total land and has 2.78% of world’s total population. Therefore, the density of population is around 23 persons per sq.km.
(c) India’s population density is high.
Ans: India’s population is around 121 crores according to Census 2011. India is the second most populous country in the world. India occupies only 2.41 per cent of the land area of theworld whereas it supports 17.5 % of the world’s population. India’s average population density is 382 persons per sq.km. as per 2011 Census.
(d) The density of population is sparse in Amazon basin.
Ans: the interior in the Amazon Basin is very sparsely populated. Unfavorable climate, heavy rainfall, inaccessibility and dense forests are the barriers to development of human settlements here. Therefore, settlements occur only in few places in the Amazon basin.
(e) Population density is high in the Ganga plains.
Ans: Ganga plains are fertile low lying plains formed due to the depositiona work of River Ganga and its tributaries.
Mild climate, moderate rainfall and fertile soil have led to the development of agri5and industries. This region also has a good transport facilities.
So, Population density is high in the Ganga plains.
Q 5. Observe the following diagram and answer the questions.
(A) Compare and classify the population densities shown in the squares ‘a’ and ‘b’ representing 1sq.km of area.
Ans; In figure a, the density of the population is 7 persons per sq.km hence its sparsely populated.
In figure b, the density of the population is 18 persons per sq.km hence its densely populated.
(B) If in figure B, one sign = 100, then what will be the sex ratio?
Ans: 1.One symbol shows = 100 persons.
2. There are 10 Female symbols.
Hence, Number of females = 100 × 10 = 1000
3. There are 8 Male Symbols
Hence ,Number of Males = 100 ×8 = 800
Males 800
Females 1000
If 1000 Males are there then how many females will be there?
number of females = 1000 × 1000÷ 800 = 1250
Hence, the sex ratio is 1250 females per 1000 males.
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