12th Geography: Chapter 1 – solved exercise


 Chapter 1 – solved exercise 

Q.1) Identify the correct correlation:

(It is MCQ type question. In exam you have to choose just correct answer. Don’t write explanation in answer sheet)

1) A:  Areas which have fertile soil have dense population.
     R:  Fertile soils are good for agriculture.
1) Only A is correct
2) Only R is correct
3) Both A and R are correct and R is the correct explanation of A.
4) Both A and R are correct and R is not the correct explanation of A.
 
Explanation: Fertile soils are good for agriculture. It has potential to feed more population. Therefore, it has dense population. Ex. Gangetic plains or major river basins, some coastal areas.

2) A:  population of a region does not change.
     R:  Birth rate, death rate and migration affect the population of a region.
1) Only A is correct
2) Only R is correct
3) Both A and R are correct and R is the correct explanation of A.
4) Both A and R are correct and R is not the correct explanation of A.

 Explanation: Population of a region changes as birth rate, death rate and migration changes continuously, these three factors known as components of population. So change in that bring change in population. These changes explained through theory of demographic transition.

3) A:  In stage 2, death rate reduces but birth rate is constant.
     R:  The population increases rapidly in stage 2.
1) Only A is correct
2) Only R is correct
3) Both A and R are correct and R is the correct explanation of A.
4) Both A and R are correct and R is not the correct explanation of A.

 Explanation:  Stage 2 is named as early expanding stage. During this stage efforts are taken to control death rate but birth rate remains same as in first stage. So, high birth rate with reducing death rate increases population rapidly.

Q.2) Write short notes on: (only hints/points to be covered are given here)

1) Impact of relief on population distribution:

Population distribution- relief- explain the correlation between population distribution and relief with examples of relief e.g. River basin is flat surface with fertile soil, abundant water availability – dense population on the other hand desert area…, mountainous area, coastal area etc.

2) Correlation between birth rate and death rates:

Concept of birth rate- concept of death rate- what if both rises – what if birth rate is higher than death rate- what if death rate is higher than birth rate- this correlation is shown in the demographic transition theory- concept of demographic transition theory

3) Stage 3 of demographic transition theory:

Concept of demographic transition theory- five stages’ names only - name of the stage 3 – birth and death rate in stage 3- characteristicsof stage 3 as given in the book (list down)- examples of countries which are going through this state- case study of India in 2-3 lines.

Q.3) Give geographical reasons:

1) India is passing through stage 3 of demographic transition.

Ans: 
         1) concept of demographic transition theory
         2) characteristics of stage 3 – name, birth rate, death rate
         3) characteristics of stage 3 in context of India – income level of people,
              Standard of living,
         4) poverty reduction, expansion of secondary and tertiary activities, use of technology
         5) family size reduces, family planning
         6) health, education facilities, literacy levels
         7) India- developing economy, more scope/need for development
         8) all the above features shows that India is passing through stage 3 of demographic          transition.

2) Population distribution is uneven.

Ans: 

           1)      Concept of population distribution
           2)      World map stencil showing population distribution in the world (remarkable countries)
           3)      Factors affecting densely populated region
           4)      Examples – Asia, Europe, north America, south America, south east Asia, china
           5)      Factors affecting sparsely populated region
           6)      Examples – major deserts in the world, polar area, amazon basin
           7)      Antarctica
           8)      Conclusion

 3) population increases because of transportation facilities.

Ans: 

                1)  Types of transport facilities
          2)  World map stencil
          3)  Benefits of roadways- door to door service
          4)  Benefits of railways- for goods transport, commercial use, long distance transport with                           large capacity of load
          5)  Benefits of seaways and airways- seaways for heavy goods, airways for valuable goods
          6)  Without all these transport facilities population can’t practice economic activities
          7)  What if a region is not accessible to reach- obstacle to development-migration
          8)  Summary of importance of transport in human life- it attracts population.

4) secondary and tertiary activities increase in the third stage of demographic transition.
Ans:
                1)  Introduction about secondary and tertiary activities with examples
                2)  Introduction about third stage of demographic transition
                3)  Features of third stage- accelerating progress, high standard of living
                4)  It demands more use of technology, so need of higher educational levels
                5)  Population is still growing because- birth rates are higher than death rates
                6)  It demands more manufacturing for survival and services to maintain standard of living
                7)  Therefore, secondary and tertiary activities increase in the third stage to fulfil demands of                        the  population.

5) Population may increase though birth rates are low.
Ans:
                1)  Concept of population composition
                2)  Growth of population = difference between birth rate and death rate
                3)  It suggests that growth of population is depend on birth and death rates
                4)  if birth rate is low and death rate is higherpopulation will be stable or decreasing as more                        people died.
                5)  if birth rate and death rates are low then due to smaller number of deaths per thousand                              population, there will be increase in population of the country.

6) Population density is a function of population and area of a region.
Ans:
                 1)  concept of population
                 2)  density of population
                 3)  density is depend on number of people and land over which those people living, 
                     therefore if one of the variable changes density changes
                 4) higher population in least land available density will be higher
                 5)  example- Delhi, Mumbai
                 6)  lower population with more availability of land density will be lower
                 7)  example- brazil, Arunachala Pradesh, Adman Nicobar
            this is how population density is a function of population and area of a region.

Q.4) Answer in detail:

1) Explain the physical factors affecting distribution of population. (click on the question for answer) (introduction of population distribution – list of factors affecting i.e. tree diagram- explain factors with examples)

2) In the first and fifth stage of demographic transition population growth is almost nil. What is difference between two stages then?

                              1)    Introduction about demographic transition theory with diagram
                        2)    First and fifth stage
                        3)   Differences are as follows

 

First stage of demographic transition theory

fifth stage of demographic transition theory

Birth rate

High

Very low

Death rate

high

Very low

Causes behind birth rates

Illiteracy, families are big etc

Family planning, awareness about health etc.

Causes behind death rates

Malnutrition, lack of health facilities, diseases etc.

Eradication of contagious diseases, healthy environment, high literacy etc.

       
                                4) Conclusion of the answer.

 3) Discuss the problems faced by countries in stage 4 and stage 5.

Ans:

                  1)      Introduction about demographic transition theory
            2)      Fourth and fifth stage features and examples of countries
            3)      problems faced by countries in stage four and fifth
          a) higher older population – low birth rate and death rate- rising life expectancy –
          b) low young population- as birth rates are low
          c) burden on the young population
          d) less consumers and workers –depend on technology- impact on economy
            4)      summary/conclusion – some benefits of these stages/ solutions to overcome these problems