Answer :
Final answer:
In general, the unit of grams is most suitable for determining the mass of a small item like a grain of rice, whilst larger objects like a hippopotamus, cat or truck would be more practically measured using larger units such as kilograms or tonnes.
Explanation:
The content loaded question asks us to consider when grams are the most useful unit of measurement in determining the mass of: A Hippopotamus, B Grain of rice, C Cat or D Truck. In science, particularly physics, we primarily use the metric system for measurements. In the metric system, the standard unit of mass is the kilogram (kg), however, the gram (g) is also commonly used and is exactly equal to 1/1000 of the mass of a kilogram (10-³ kg).
In considering the items listed, a gram is a small unit of mass, and thus it would probably be most useful when measuring something as small as a grain of rice. While we could technically use grams to measure the mass of a Hippopotamus, Cat, or Truck, these are much larger objects and, for convenience and practicality, we would typically use larger units, like kilograms or even tonnes for extremely large items like a truck. Grams would give us very large numbers in these cases, which can be more difficult to work with.
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