Which of the following is the unit used to measure volume?

• A. Gram (g)
• B. Meter (m)
• C. Liter (L)
• D. Second (s)

Answer: (C)

Volume is the amount of space that a substance or object occupies, so we use a unit that measures space. The liter is the unit used for volume, especially for liquids and everyday measurements. The other options measure different quantities: grams for mass, meters for length, and seconds for time. A liter equals 1000 milliliters, and 1 cubic meter equals 1000 liters, which helps relate small container volumes to larger ones. So for measuring how much a container holds, the liter is the appropriate unit.