Geography Class 10 Chapter 6 Population Solutions

(a)

In fig. (a) density of population is 7 persons per sq. km.

The region is sparsely populated.

In fig. (b), the density of population is 18 persons per sq. km.

The region is densely populated.

(b)

Since there are 10 female symbols, there are:

Since there are 8 male symbols, there are:

then the number of females = ?

= 1250

Sex Ratio is 1250 females per 1000 males.

Amazon basin is mainly unfavorable for human settlements.

Uttar Pradesh, Madhya Pradesh, Andhra Pradesh, Himachal Pradesh, Arunachal Pradesh.

Alaguas, Amazonas, Paraná, Rio de Janeiro, Sao Paulo.

Alaguas – 3,321,730

Amazonas – 3,873,743

Parana – 11,081,692

Rio de Janeiro – 16,461,173

Sao Paulo – 44,035,304

Brazil ranks fifth in the world with respect to population and area- Right

Dense population is found at west in Brazil- Wrong

Correct statement:

Dense population is found at a south-east region in Brazil.

OR

Disparsed population is found at west in Brazil.

Distribution of the population is high in Ganga river basin of India.

Expectancy of life is still less in developing countries- Right

Answer

Similarities:

In both Brazil and India, the population is unevenly distributed depending on the physiography, with densely forested areas having lesser density.

The Amazon Basin in Brazil does have low population density due to dense forests, poor soil, and difficult living conditions. The Himalayan mountain range in India also has a low population density because of its steep terrain, cold climate, and inaccessibility.

Differences:

India is the second most populated country in the world while Brazil is the fifth.

The highest concentration of the population in India is in the northern plains while Brazil is the southeastern coastal lowlands.

Answer

Population is an important resource as it is the human resources that ultimately affect the progress of a country.

Its qualitative aspects like literacy and life expectancy contribute to the economic and social progress of a nation.

More educated the population, more is the skill supply which will be used by industries to manufacture products.

Apart from that, it will lead to more development of technology. This will eventually contribute to the economic prosperity of the country.

Answer

Brazil is the fifth largest country of the world in terms of area. According to 2010 Census, Brazil had a population of 19 crores and was the fifth most populated country in the world.

Brazil occupies 5.6% of the world’s total area and contributes to 2.78% of the world’s population.

Also, the population growth rate of Brazil is declining as it is trying to control population growth.

Due to the above reasons, the population density of Brazil is very less which is 23 persons per sq. km. as per 2010 census.

Answer

India’s population density is high because most of the areas have natural resources that support agriculture and industries.

Other factors like water availability and numerous cities have also caused the growth of population.

Population in India is unevenly distributed. The northern plains have been densely populated for centuries due to fertile land, availability of water, and economic activities.

Rivers like Ganga and Yamuna provide large tracts of fertile land apart from water. Also, the terrain is not a difficult one to travel.

Due to the availability of even fertile land and water, they prefer settling in the northern plains as opposed to the desert areas of northwest India.

Answer

The Amazon basin in Brazil has tropical rainforests as it is closer to the equator and it rains throughout the year.

It has dense and diverse flora and fauna which is unfavourable for human inhabitation. Almost half of Brazil area is covered by the tropical rainforests of the Amazon basin.

The dense forest makes human settlements very difficult in those areas.

Rain forests aren't a very friendly environment for human habitation, i.e. lack of fresh water, dangerous animals, lack of solid ground, lack of dry shelter, skeeters, dense trees, limited fuel and food sources, and difficult transportation

Answer

The Ganga plains of India have a high population density due to many reasons.

The northern plains have been densely populated since centuries due to fertile land, availability of water and economic activities.

Rivers like Ganga, Yamuna provide large tracts of fertile land apart from water. The moderate climate, fertile land supporting extensive agriculture.

Also, the terrain is not a difficult one to travel.

The topography is good for transport and industries.

Due to the availability of even fertile land and water, People prefer settling in the northern plains as opposed to the desert areas of northwest India.

The relation between climate and population:

High rainfall causes growth of dense forests where human settlements are very few, like the Amazon basin in Brazil and northeastern states in India.

Extreme climatic conditions like arid and cold areas reduce the human population. For example, the savannah in Brazil and the high altitudes of the Himalayas in India are less populated.

Areas with a climate that supports agriculture are most populated, like the northern plains in India and coastal lowlands in Brazil.

Areas with moderate climates are also well populated, like the deciduous and coastal areas.

5.6% of the world’s total land is occupied by Brazil.

India ranks first in population in the world.

Explanation:

India ranks 1st in population in the world as of 2023, surpassing China.

In Brazil, people prefer living in the southeast as compared to the northeast- Right

Explanation:

In the south-east, there are coastal lowlands where agriculture and industries have flourished and there are more human settlements. While the north-east has unfavorable conditions due to the dense forests.

Literacy rate is higher in Brazil than India- Right

Explanation:

As per UNESCO, the literacy rate is the total number of literate persons in a given age group, expressed as a percentage of the total population in that age group. The literacy rate has always been higher in Brazil but the rate of growth of literacy rate is higher in India. The difference in the literacy rate comes mainly because of the population difference between the countries.

Number of females per thousand males in a region is known as sex ratio.

Answer

This is the population pyramid, which shows age and sex of population.

The age group of 10 to 14 years has the highest population.

The class interval of age groups given on ‘Y’ axis is 5 years.

In the age group of above 60 years, the percentage of the male and female population is almost the same.

In the age group of 55 to 59, 2% females are found.

The decrease in population is found after the age group of 15 to 19.

Answer

This is population pyramid which shows age and sex of population.

The age group of 30 to 34 years has the highest population.

The class interval of age groups given on ‘Y’ axis is 5 years.

In the age group of above 60 years, the number of females is more than males.

In the age group of 55 to 59 years, females are more than 2%.

The decrease in population is found after the age group of 30-34.

Answer

Sparse population is found in the basin of river Ganga- Wrong

Correct statement-

Dense population is found in the basin of river Ganga.

Dense population is found in the north-west region of India- Wrong

Correct statement-

Dispersed population is found in the north-west region of India.

This statement is Wrong.

Right statement: The life expectancy of Indians is increasing.

OR

Expectancy of life is increasing in India day by day.

The density of population in the state of Kerala is more than 500 persons in per square kilometer.

The number of females per 1000 males in a region is called the sex ratio.

The time duration of census in India is 10 years.

Answer

According to the 2010 Census, Brazil had a population of 19 crores. Brazil occupies 5.6% of the world’s total area and contributes 2.78% of the world’s population. Also, the population growth rate of Brazil is declining since efforts are being made to control the population growth.

The population density of Brazil is very less. It is 23 persons per sq. km.

as per 2010 census.

Conversely, the interior of the Amazon Basin is very sparsely populated due to unfavourable climate, heavy rainfall, inaccessibility and dense forests.

The density of the population in the highlands of Brazil is moderate.