Question

is the measure of how much a given volume of matter decreases when placed under pressure

Explanation:

Compressibility is a physical property of matter. It specifically measures the reduction in volume of a given amount of matter when pressure is applied. Ductility refers to the ability of a material to be drawn into wires. Solubility is about a substance dissolving in a solvent. Malleability is the capacity of a material to be hammered or rolled into thin sheets.

Answer:

compessibility