What is the SI unit for length?

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Multiple Choice

What is the SI unit for length?

Explanation:
Length is measured in the SI system using the meter. The meter is the standard reference for distance, defined in modern terms by the speed of light in a vacuum. Kilogram measures mass, not length; second measures time; liter measures volume (not a base SI unit for length). Because the question asks for the SI unit of length, the meter is the correct choice.

Length is measured in the SI system using the meter. The meter is the standard reference for distance, defined in modern terms by the speed of light in a vacuum. Kilogram measures mass, not length; second measures time; liter measures volume (not a base SI unit for length). Because the question asks for the SI unit of length, the meter is the correct choice.

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