The oxide MnO2 is a solid; I suppose that the oxide Mn2O2 doesn't exist,if it is then it must be a solid due to presence of metal Manganese.
Liquid
A solid.
a feather is a solid
steel is the example of solid in solid
What is the state at room temperature for Niobium?It's a solid!
A pencil is a solid object.
Bricks are gaseous.
solid particols
A solid is not a solid when you change the shape and becomes different.
fish are solid
solid-solid
it is a solid