Q1: Choose the right answer from the four alternatives given below.
(i) Which one of the following has caused the sex ratio of the United Arab Emirates to be low?
(a) Selective migration of male working population
(b) High birth rate of males
(c) Low birth rate of females
(d) High out migration of females
Ans: (a) Selective migration of male working population
(ii) Which one of the following figures represents the working age group of the population?
(a) 15 to 65 years
(b) 15 to 64 years
(c) 15 to 66 years
(d) 15 to 59 years
Ans: (d) 15 to 59 years
(iii) Which one of the following countries has the highest sex ratio in the world?
(a) Latvia
(b) United Arab Emirates
(c) Japan
(d) France
Ans: (a) Latvia
Q2: Answer the following questions in about 30 words.
(i) What do you understand by population composition?
Ans: Population composition refers to those characteristics of population which are measurable and helps in distinguishing one group of people from other such as age, sex, literacy rate, occupation etc.
(ii) What is the significance of age-structure?
Ans: Age structure represents the number of people of different age groups. It is an important indicator of population composition, since a large size of population in the age group of 15- 59 indicates a large working population.
(iii) How is sex-ratio measured?
Ans: The ratio between the number of women and men in the population is called the Sex Ratio. In some countries it is calculated by using the formula:
Male Population/Female Population × 1000 or the number of males per thousand females.
In India, Female Population/Male Population × 1000 or the number of females per thousand males.
Q3: Answer the following questions in not more than 150 words.
(i) Describe the rural-urban composition of the population.
Ans:
(ii) Discuss the factors responsible for imbalances in the sex-age found in different parts of the world and occupational structure.
Ans: The sex-age structure of a population refers to the number of females and males in different age groups. A population pyramid is used to show the age-sex structure of the population.
Occupational structure: The working population (age group – 15 to 59) take part in various occupations. More females are engaged in the tertiary and quaternary sector than primary and secondary activities. This is because primary and secondary activities require more muscle power.
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