List of top Healthcare and Hospital Management Questions on Environmental Health

Which of the following terms has been defined by WHO as "the control of all those factors in man's physical environment which exercise or may exercise a deleterious effect on his physical development, health and survival"?
What does the unit "Becquerel (Bq)" define?
Which of the following measures the hardness of water for different salts?
Nalgonda technique for defluoridation of water involves the following steps. Arrange them sequentially from first to last step.
A. Addition of two chemicals (lime and alum)
B. Sedimentation
C. Flocculation
D. Filtration
Choose the correct answer from the options given below: