In the United States, which is NOT a potential reason for the rise in the frequency of LBW babies?

Name: In the United States, which is NOT a potential reason for the rise in the frequency of LBW babies?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Genetic factors are not a potential reason for the rise in the frequency of LBW babies because these factors would remain relatively constant in a population over time. The other options (food insecurity, drug use, and cigarette use) are all potential contributing factors to the rise in LBW babies.

In the United States, Which Is NOT a Potential Reason