Question

What does population density mean?

(a) The number of animals and plants present in a given area

(b) The number of individuals in a unit area in a unit time

(c) The concentration of human population

(d) The number of animals and plants present in a given area

This question was posed to me at a job interview.

Query is from Population Attributes topic in division Organisms and Populations of Biology – Class 12

Answer 1

Correct answer is (b) The number of individuals in a unit area in a unit time

To explain: The population density tells about the number of individuals in a unit area at a specific time. It is a geographical term. Countries with high population density are said to be over-populated.