Answer: Gases
Explanation: There are three states of matter:
1.Solid state : In this state, the molecules are arranged in regular and repeating pattern. They have fixed volume and fixed shape.
2. Liquid state : In this state, the molecules are present in random and irregular pattern. They have fixed volume but acquire the shape of the container.
3. Gaseous state : In this state, the molecules are present in irregular pattern. They have neither fixed shape nor volume. They fill the entire volume available.