Answer:
varying, does, does not
Explanation:
A gas does not have a defined volume on its own. It takes up the shape of the whatever container it is in.
This is due to the fact that gasses have weak inter-molecular forces between them. Gases are generally compressible unlike liquids which are mostly incompressible. Some, example of gases are hydrogen (H2), nitrogen (N2), oxygen (O2) etc.
