Question

Mention two important factors responsible for population change.

Hint:

Factors responsible for population change

Answer 1

Step 1: Understanding the Question:
Population change means how the number of people in an area rises or falls over time, and geographers track a set of standard factors behind it.

Step 2: First factor.
The difference between births and deaths, called natural increase, is a core driver: more births than deaths raises population, and more deaths than births lowers it.

Step 3: Second factor.
Migration, people moving into or out of an area, is the other main factor. Net in-migration adds to population even if births and deaths stay balanced, and net out-migration reduces it.

Final Answer:
Natural increase (births minus deaths) and migration are two important factors responsible for population change.\[ \boxed{\text{Natural increase; Migration}} \]