Which factors best help determine an increase in population size

1. Birth rates: Higher birth rates can contribute to an increase in population size as more individuals are being added to the population.

2. Mortality rates: Lower mortality rates can also lead to an increase in population size as fewer individuals are dying, allowing the population to grow.

3. Immigration: Increased immigration can introduce new individuals to a population, contributing to an increase in population size.

4. Age distribution: A youthful age distribution, with a higher proportion of individuals in the reproductive age range, can lead to higher birth rates and contribute to population growth.

5. Economic factors: Economic stability and prosperity can influence population growth as individuals may feel more secure in having children and raising families.

6. Social and cultural factors: Social and cultural norms and values can also impact population growth, as they may influence attitudes towards family size and childbearing.

7. Access to healthcare and family planning services: Improved access to healthcare and family planning services can lead to lower birth rates and slower population growth.

8. Environmental factors: Environmental factors such as availability of resources, food security, and climate conditions can also impact population growth by affecting birth and mortality rates.