Metals are usually more dense than wood. pick the statement below which accurately compares metals to wood. metals have less mass per unit volume than wood.
metals have more mass per unit volume than wood.
metal and wood have the same mass per unit volume.

Metals have more mass per unit of volume than wood.

Explanation:

Density is defined as the amount of matter contained in a unit of volume. A material that is denser than another will therefore have more mass per unit of volume.

The density of a body can affect buoyancy, bodies with low enough densities can float in fluids. For example wood can float in water while metals can't.

see earlier

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.