Which of the following is the most correct statement about a gas? a- a gas is not affected by changes in pressure b- a gas holds its shape c- a gas has very little thermal energy d- a gas takes the shape of its container

I believe that the most correct statement about gases is that gases take the shape of the container. This is because gases have an irregular shape unlike solids. Gases is among the three states of matter, they contain particles or molecules which are further apart compared to those of liquids and solids due to weak intermolecular forces of attraction between them.

Friction is the force that act and opposes all motion of moving objects