Population Dynamics Part 2

Question 1

Define underpopulation

Answer 1

Underpopulation is a state when the number of people living in a region is so few that the resources are not fully utilised.

Question 2

Causes of underpopulation?

Answer 2

• low birth rate
• high death rate
• high level of emigration

Question 3

Negetive impact of underpopulation

Answer 3

Underpopulation yields insufficient skilled labour force. Owning to the lack of skill and technology, there is poor utilisation of resources that leads to poor economic growth and low standards of living.

Question 4

Positive impact of underpopulation

Answer 4

This situation may also result in better job opportunities in the absence of fierce competition, sufficient resource availability and reduced levels of pollution.

Question 5

What are the factors that affect population change?

Answer 5

• Crude birth rate
• Crude death rate
• Population growth rate
• Migration

Question 6

Define census

Answer 6

Census is the official enumeration of population, conducted once in every 10 years. Census has been conducted since 1881.

Question 7

Define birth rate

Answer 7

Birth rate or crude birth rate refers to the number of live childbirth per 1000 persons in a given geographical area per year.

Question 8

Define death rate

Answer 8

Death rate or crude death rate refers to the number of deaths per 1000 persons in a given geographical area in a year.

Question 9

Define Population growth rate

Answer 9

Population growth rate compares the average annual percentage change in population, resulting from a surplus of births over deaths and the balance of migrants entering and leaving a country.

Question 10

Define migration

Answer 10

Migration is an important determinant of population change in a country. It is the movement by people from one place to another, with the intention of settling permanently in the new location.

Question 11

Sex ratio

Answer 11

Sex ratio refers to the number of females per 1000 males in the population.

Question 12

Age composition

Answer 12

Age composition refers to the number of people of different age groups in a country. Age groups signify the rate of use of resources and the capacity to work.

Question 13

Define population pyramid

Answer 13

Population pyramid refers to the graphical representation of the population structure based on an age-wise increase or decrease of the male-female population of a country.