Population doubling time is
- A. Growth rate(GR%)/70
- B. 70/GR%
- C. 60/GR%
- D. GR%/60
Correct Answer: B
Rationale: Population doubling time is calculated using the formula 70/GR%, where GR% is the annual growth rate expressed as a percentage.
You may also like to solve these questions
Ottawa charter 1986 is related to:
- A. Reproductive health
- B. Health promotion
- C. Primary Health care
- D. Population development
Correct Answer: B
Rationale: The Ottawa Charter is dedicated to promoting health and well-being.
Name the four major classes of pesticides.
- A. Organochlorines, organophosphates, carbamates, pyrethroids.
- B. Antibiotics, antifungals, herbicides, rodenticides.
- C. Insecticides, fungicides, herbicides, acaricides.
- D. Biological agents, synthetic agents, natural agents, chemical agents.
Correct Answer: A
Rationale: The four major classes of pesticides are organochlorines, organophosphates, carbamates, and pyrethroids.
Precision stands for—
- A. Reliability
- B. accuracy
- C. consistency
- D. validity
Correct Answer: A
Rationale: Precision denotes the reliability and consistency of measurements.
Ideally, a case definition is 100% accurate in identifying who does and does not have the disease in question, but in reality few case definitions achieve this ideal.
- A. TRUE
- B. FALSE
Correct Answer: A
Rationale: Case definitions aim for high specificity and sensitivity but rarely achieve perfection due to diagnostic limitations.
Hottest year was
- A. 2001
- B. 2002
- C. 2003
- D. 2004
Correct Answer: C
Rationale: The year 2003 was recorded as one of the hottest years globally due to climate change impacts.
Nokea