Final Answer:
Over the past 30 years, the population in the United States has steadily increased. The population growth in the United States over the last three decades can be substantiated by examining demographic trends and statistical data.
Step-by-step explanation:
According to the U.S. Census Bureau, the population has experienced a consistent upward trajectory, driven by factors such as natural population growth (births minus deaths), net international migration, and, to a lesser extent, domestic migration. These components contribute to the overall population change, and their cumulative effect reveals the observed increase.
Demographic shifts, including the sustained influx of immigrants and a relatively high birth rate, have been crucial contributors to this growth. The formula for calculating population change involves subtracting the initial population from the final population and dividing the result by the initial population, expressed as a percentage. This straightforward calculation demonstrates the percentage increase in the population over the specified period. Examining these demographic dynamics and quantitative measures provides a comprehensive understanding of the factors influencing the population change and the extent of its growth.
In summary, the consistent population growth in the United States over the past 30 years is a result of the interplay between births, deaths, immigration, and domestic migration. This demographic expansion has significant implications for various sectors, including economics, healthcare, and policymaking. Understanding these demographic trends is vital for policymakers and researchers to formulate informed decisions that align with the evolving needs of an expanding population.