Question

The increase in density of a population depends upon ........

• A. high mortality
• B. high natality
• C. low emigration
• D. high emigration

Hint:

Population density increases when birth rates (natality) are higher than death rates (mortality), with immigration playing a secondary role.

Answer 1

The Correct Option is B

Step 1: Understanding population density.
The density of a population is affected by factors such as natality (birth rate), mortality (death rate), immigration, and emigration. An increase in population density typically results from high natality and low mortality.
Step 2: Analyzing the options.
(A) high mortality: Incorrect — High mortality would decrease the population density, not increase it.
(B) high natality: Correct — High natality, or birth rate, leads to an increase in population density.
(C) low emigration: While low emigration can contribute to population growth, it is not as significant as high natality.
(D) high emigration: Incorrect — High emigration would reduce the population density.
Step 3: Conclusion.
The correct answer is (B) high natality, as the increase in population density is driven by high birth rates.