Question

a characteristic of matter is a(n) ______.
○ property
○ ability
○ mark
○ state

Explanation:

In the context of matter in science, a characteristic of matter is defined as a property. "Ability" refers to a capacity to do something, "mark" is a symbol or indication, and "state" (like solid, liquid, gas) is a specific form of matter, not a general characteristic term. So the correct term for a characteristic of matter is property.

Answer:

A. property