Assertion (A) and Reason (R) are given below. Choose the correct option:
Assertion (A): Annual growth rate reflects the pace at which population increases in a given year.
Reason (R): A 2% annual growth rate means two new persons are added per 100 persons in the base population.
Show answer & explanation
Correct answer: A
Explanation
Correct Answer: Both A and R are true, and R is the correct explanation of A.
Explanation:
- Assertion (A): This is absolutely correct. The annual population growth rate is the pace at which the population increases during a specific year. It is expressed as a percentage (%).
- Reason (R): This is also correct and explains the assertion. If the annual growth rate is 2%, it mathematically implies that 2 new individuals are being added for every 100 persons in the original population (the population of the base year).
Additional Facts (Components of Population Growth):
- Changes in population occur primarily due to three processes:
- Birth Rate: The number of live births per thousand persons.
- Death Rate: The number of deaths per thousand persons.
- Migration: The movement of people from one region to another.
- Note: India's annual population growth rate has been gradually declining since 1981, reflecting the positive impact of family planning and awareness.
Important Questions for Upcoming Examinations:
- Question: How is the 'Natural Increase' of the population calculated?
- Answer: The difference between the birth rate and the death rate.
- Question: Which year is referred to as the 'Year of Great Divide' for India's population?
- Answer: 1921 (because the population growth rate was negative during this year).
- Question: According to the 2011 Census, what was India's Decadal Growth Rate?
- Answer: 17.7%.