Which scientific term best matches this description: Fundamental unit of mass in the sciences?

A) kilogram (kg)

B) meter (m)

C) micron (µm)

D) nanometer (nm)

Answer: A

Explanation: The fundamental unit of mass in the sciences. One kilogram is equivalent to 1,000 grams or about 2.2 pounds; the mass of a liter of water.

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