Indicate weather each of the following can be determined exactly or must be measured with some degree of uncertainly:
(a) the number of second in an hour
(b) the number of pages in this book
(c) the number of grams in your weight
(d) the number of grams in 3 kilograms
(e) the volume of water you drink in one day
(f) the distance from san francisco to kansas city
Answers: 3
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