The two common properties of all solids are fixed and weight density volume length shape

Hello there!

We know that solids can expand or contract when their temperature changes, so solids don't have a fixed volume.

Because the volume can vary, then the density that is mass over volume also can change.

And with the same reasoning, the length can change.

The mass of a solid does not change with the change of temperature, so the mass is invariable, which means that the weight is a fixed quantity.

The shape is also fixed, the volume can increase o decrease a little, but the solid maintains the shape.

Then the two common properties of all solids are fixed weight and shape.

overcharge is the right answer system

+15-35=-20

going in opposite directions