For the prediction of future population of a city, the factor to be considered, is
A. Births
B. Deaths
C. Migrants
D. All the above
Answer: Option D
A. Births
B. Deaths
C. Migrants
D. All the above
Answer: Option D
The fire demand of a city may be worked out by
A. Kuichling’s formula
B. Freeman formula
C. Bustan’s formula
D. All the above
Mathamoglobinemia or blue baby disease is caused due to
A. Chlorides
B. Nitrites
C. Nitrates
D. Sulphides
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