Question

indicate whether each of the following can be determined exactly or must be measured with some degree of uncertainty
the number of eggs in a basket choose
the mass of a dozen eggs choose
uncertain

exact
the number of grams in your weight choose
the number of grams in 3 kilograms choose
the volume of water you drink in one day choose

Explanation:

Step1: Counting eggs

You can count the number of eggs in a basket exactly. So it is exact.

Step2: Mass measurement

The mass of a dozen eggs is measured using a scale. Scales have some level of uncertainty in measurement. So it is uncertain.

Step3: Human weight measurement

Your weight is measured using a scale. Measurement of weight has some uncertainty due to the precision - limits of the scale. So the number of grams in your weight is uncertain.

Step4: Unit conversion

1 kilogram = 1000 grams. So the number of grams in 3 kilograms is 3000, which is an exact value.

Step5: Volume measurement

The volume of water you drink in one day is measured using containers. There is some uncertainty in the measurement due to the precision of the measuring container. So it is uncertain.

Answer:

the number of eggs in a basket: exact
the mass of a dozen eggs: uncertain
the number of grams in your weight: uncertain
the number of grams in 3 kilograms: exact
the volume of water you drink in one day: uncertain