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What do vital statistics provide important sources of data on?
- A. Morbidity.
- B. Mortality.
- C. Health-related behaviors.
- D. Injury and disability.
Correct Answer: D
Rationale: Vital statistics also track injuries and disabilities, contributing to a comprehensive health overview.
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Why is the availability of a reliable and safe water source a concern to officials in the United States and the rest of the world?
- A. Waterborne diseases, scarcity issues.
- B. Abundant freshwater reserves globally.
- C. Low demand for clean water.
- D. Complete reliance on desalination.
Correct Answer: A
Rationale: Access to safe water prevents waterborne diseases and addresses growing scarcity concerns worldwide.
UN declaration on human right occurred in:
- A. 1948
- B. 1950
- C. 1946
- D. 1952
Correct Answer: A
Rationale: The Universal Declaration of Human Rights was adopted by the UN General Assembly in 1948.
Which shape of a population pyramid is most consistent with a young population?
- A. Tall, narrow rectangle
- B. Short, wide rectangle
- C. Triangle base down
- D. Triangle base up
Correct Answer: C
Rationale: A triangle base down reflects a high proportion of young individuals.
Denominator of prenatal mortality is
- A. Number of live births
- B. Number of deliveries (live and still births)
- C. Live births— still births
- D. Number of still births
Correct Answer: B
Rationale: Prenatal mortality includes both live and still births, making the total number of deliveries the appropriate denominator.
Describe the overall trends reflected in the chart.
- A. Cyclical increases followed by declines
- B. Steady increase over time
- C. Steady decline over time
- D. Random fluctuations with no pattern
Correct Answer: A
Rationale: Pertussis exhibits cyclical patterns due to waning immunity and vaccination coverage.