Which of the following is not a unit of distance? 1. Light year 2. Cubic meter 3. Attometer 4. Picometer

Which of the following is not a unit of distance? 1. Light year 2. Cubic meter 3. Attometer 4. Picometer

مندرجہ ذیل میں سے کون سی فاصلے کی اکائی نہیں ہے؟
Explanation

Cubic meter (Cubic meter is a unit of volume, not distance.)