Final answer:
The federal definition of underserved communities encompasses populations lacking adequate access to essential services such as healthcare, employment, housing, food, and internet.
Step-by-step explanation:
The federal definition of underserved communities refers to populations and areas that lack adequate access to critical services and infrastructure. These can include, but are not limited to, essential healthcare, employment opportunities, affordable housing, healthy food, and high-speed internet. The digital divide and areas with limited healthcare, referred to as medically underserved regions or populations, are key indicators of such communities. Factors such as socioeconomic status, geographic location, and the presence or absence of community support and resources play significant roles in defining whether a community is considered underserved.