Question

write short note on the following 1. natural growth of population
2. Density of population
3.Sex ratio
4. Birth rate and death rate ​

Answer 1

Answer:

Definition: The difference between the number of live births and the number of deaths during the year. The natural increase (or natural decrease) is negative when the number of deaths exceeds the number of births.

Reasons for the expected population growth include increase in the number of young unmarried mothers, high fertility rates for some ethnic groups, and inadequate sexual education and birth control provision.

In this activity you discovered that birthrate, death rate, immigration, and emigration affect the growth rate of a natural, open population.

Answer 2

Answer:

The rate of natural increase is the difference between birth and death rates. It measures the degree to which a population is growing. Since birth and death rates are measured as the number of births (or deaths) occurring per 1,000 population, the difference is divided by 10 to convert this rate into a percentage.