Epidemiology 1. Is a science that studies the poisonous effects of ch
Epidemiology
1. Is a science that studies the poisonous effects of chemicals
2. Explains the association between learning disabilities and exposure to lead-based paint at the cellular level
3. Helps us understand the strength of the association between exposure and health effects
4. Is a method for tracking the prevalence of a disease
ESSAYBID ANSWER
ANS: 3
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