Match the LIST-I with LIST-II
| LIST-I Terms | LIST-II Features |
|---|---|
| A. Natality | I. Number of deaths during a given time period |
| B. Mortality | II. Number of individuals of same species that have come into the habitat from elsewhere |
| C. Immigration | III. Number of individuals of the population who left the habitat and have gone elsewhere |
| D. Emigration | IV. Number of births during a given time period |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → A-IV, B-I, C-II, D-III
(A) Natality — this matches (IV) Number of births during a given time period. Births add individuals, so natality increases the population density.
(B) Mortality — this matches (I) Number of deaths during a given time period. Deaths remove individuals, so mortality decreases the density.
(C) Immigration — this matches (II) Number of individuals of same species that have come into the habitat from elsewhere. Individuals coming in add to the population.
(D) Emigration — this matches (III) Number of individuals of the population who left the habitat and have gone elsewhere. Individuals going out reduce the population.
Note: A similar question was also asked in CUET (UG) 2026 on 22-05-2026 (Slot 2), and in CUET (UG) 2025 on 13-05-2025 (Slot 2).
NCERT Extract:
Population Growth – “… Whatever might be the ultimate reasons, the density of a population in a given habitat during a given period, fluctuates due to changes in four basic processes, two of which (natality and immigration) contribute to an increase in population density and two (mortality and emigration) to a decrease.
(i) Natality refers to the number of births during a given period in the population that are added to the initial density.
(ii) Mortality is the number of deaths in the population during a given period.
(iii) Immigration is the number of individuals of the same species that have come into the habitat from elsewhere during the time period under consideration.
(iv) Emigration is the number of individuals of the population who left the habitat and gone elsewhere during the time period under consideration.”