Population Density Changes — NEET Biology
📚 Practice ConceptTwo of which (natality and immigration) contribute to an increase in population density and two (mortality and emigration) to a decrease.
Assertion (A): Population density is influenced by four major factors. Reason (R): Natality and emigration contribute to population increase while mortality and immigration contribute to population decrease.
View solution & NCERT explanation
Correct answer: C — If assertion is true but reason is false.
The Assertion is true - NCERT mentions four factors affecting population density. However, the Reason is false. NCERT states “two of which (natality and immigration) contribute to an increase in population density and two (mortality and emigration) to a decrease” - the Reason swaps immigration with emigration and their effects.
What does NCERT say about Two which natality and?
Has this concept appeared in NEET?
Which chapter is this from?
Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.
176/180MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.