Which of the following contribute to an increase in population density?

Which of the following contribute to an increase in population density?
  1. Natality and immigration
  2. Mortality and emigration
  3. Natality and mortality
  4. Immigration and emigration

Solution

Two processes, natality and immigration, contribute to an increase in population density, while two others, mortality and emigration, contribute to a decrease.

Asked in: NCERT

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