What was a major reason for americans to move to the sunbelt?

Employment Opportunities.

Explanation:

Sun belt is actually a region that can be found in the United States. This can be found just across Southwest and Southeast. Actually, the main reason why the Americans decided to transfer to this region is to find jobs that are related to aerospace, electronics, and defense.

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering

genetics is the study of how dna works, the methodologies defining the new recent technologies allow scientist to have a panoramic view of the entire dna landscape, especially how genomes interact with their environment, including off course, factors outside their organisms.

thus is very possible the existence of both scenarios, where populations of isolated individuals have different genetic traits, and share traits related to genetic mutation, due rats can easily travel overseas using human transport channels. so scientists could get a vast number of data, including human interaction, evolution of rodents, health development, spread of infections, development of new organisms, how genomes evolve in different environments and so on.