1. which is the most sensible unit for long distances?

a. centimetre
b. kilometre
c. meter
d. millimetre

2. which is the most sensible weight of an adult?

a. 60 milligrams
b. 60 grams
c. 60 kilograms
d. 60 tons

3. what is the basic unit of length in the metric system of measurement?

a. kilogram
b. kilometre
c. liter
d. meter
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