Answer:The two correct sentences about the energy of the filled gas cylinder are:
It has gravitational potential energy because of its height.
Its atoms and molecules have thermal energy.
Step-by-step explanation:
The gas cylinder being held still does not imply that it has no energy. Energy can exist in different forms.
The gravitational potential energy is present because the gas cylinder is at a certain height from the ground, and it possesses the potential to fall and convert that potential energy into kinetic energy.
The atoms and molecules of the gas inside the cylinder possess thermal energy, which is related to their random motion and temperature.
The statement about motion energy and conversion to potential energy is not applicable to the gas cylinder being held still.