Question

identify the variables in this hypothesis.
if the pressure of a gas is increased, then the volume will decrease because the particles of the gas will be forced more closely together.
the independent variable is
the dependent variable is
pressure
gas
volume
particles

Explanation:

The independent variable is the one manipulated (pressure), and the dependent variable is the one measured (volume, which changes based on pressure).

Answer:

The independent variable is pressure.
The dependent variable is volume.