Question

Causes of changes in population include/s ___________.

• A. Births
• B. Deaths
• C. Migration
• D. All of the above

Answer 1

Answer: (D)

All of the above

Population size is ever changing. The major reasons for population change are birth, death, and migration. The birth is the chief natural factor which results in the increase of population.

Death is another important natural cause, which decreases the population of a country.

Migration means movement of people from one place to another. It causes variation in the population. When persons migrate from one country say India and move to another country say, Sri Lanka. The population of India decreases whereas the population in Sri Lanka, on the other hand, tends to increase.