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Question: There has been a rapid increase in world population during the 20th century especially in India main...

There has been a rapid increase in world population during the 20th century especially in India mainly due to
A. More children reaching reproducing age
B. More resources
C. Higher longevity
D. More people marrying early

Explanation

Solution

The word population refers to the number of organisms belonging to the same group or species that live in a geographical area. Depending on the mortality rate, the population of the world increases and decreases. After the agricultural revolution and industrial revolution, significant growth of population is observed.

Complete answer: The decline in the mortality rate has led to an increase in the survival of children. Mortality rate can be defined as the number of deaths per unit time occurring in a specific population. The measure of the number of organisms of all species that live in a particular geographical area and are capable of interbreeding is referred to as a population. In simple terms, it can be stated as the number of people residing in a city, state, country, or world. The method of altering a human population’s rate of growth is called human population management. Owing to the reduction in the death rate, the population of the world is growing day by day. The mortality rate is also called the death rate. It can be defined as the measure of the number of deaths that occur in a particular area, which is scaled to the size of that area by per unit time. As there is a decline in mortality rate, the children get older and reach the age of puberty. The word puberty refers to the age of adolescence. Therefore, more children reaching the age of reproduction is the major reason for the increase in the population during the 20th century in India.
So, option A is the correct answer.

Note: Major decline in the maternal mortality rate and the infant mortality rate has increased the population of the world, especially in India. To assess the population, a method called census is carried out. It involves the process of collecting data, analyzing the collected data, compiling and publishing the data.