Which of the following describes a gas?
O
A. Does not have a fixed volume or a fixed shape
O
B. Has a fixed volume and a fixed shape
O
C. Has a fixed shape but not a fixed volume
O
D. Has a fixed volume but not a fixed shape

A.  Does not have a fixed volume or a fixed shape.

Explanation:

A liquid is matter that has a fixed volume but not a fixed shape. A gas is matter that has neither a fixed volume nor a fixed shape. Like a gas, plasma lacks a fixed volume and shape.

Liquids have a fixed volume but no fixed shape. This is because the particles in a liquid are further apart than the particles in a solid, allowing them to easily slide past each other. Solids have a fixed shape because their molecules are so tightly packed they cannot do much more than vibrate against each other.

You might ask, What is a definite shape?

Any matter that is a solid has a definite shape and a definite volume. The molecules in a solid are in fixed positions and are close together. Although the molecules can still vibrate, they cannot move from one part of the solid to another part. As a result, a solid does not easily change its shape or its volume.

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.