Which of these metric units meter kilometer kilogram or liter-is the best one to use when measuring each of the following?

Answer 1

meter and kilometer (1 kilometer = 1000 meter) are used to measure lengths and distances (1 foot ≈ 0.3 meters)

gram and kilogram (1 kilogram = 1000 gram) are used to measure weights/mass (1 pound ≈ 0.45 kilogram)

liter (there are no "kiloliters") is used to measure volumes of liquids (1 gallon ≈ 3.7 liters)

definition:

1 dm^3 (dm = dezimeter = 1/10 meter) = 1 liter

if you'r doing a scientific experiment, you should stick to the SI-units which are meter and kilogramm.