What are the two main reasons for the increase in population within ethnic groups in the United States?

Question

Multiple select question.

Immigration

Increased incomes

Higher birthrates

Longer lifespans

Answer 1

The two main reasons for the increase in population within ethnic groups in the United States are:

1. Immigration
2. Higher birthrates

These factors contribute significantly to the growth of specific ethnic populations. Longer lifespans can also play a role in overall population dynamics, but the primary drivers for the increase are typically immigration and higher birthrates. Increased incomes may improve living standards but are not a direct reason for population increase.