Molecules in the gaseous state have the highest kinetic energy. This is because they are free to move around in random directions.
A homogeneous mixture is a solid, liquid or gaseous mixture that has the same proportions of its components throughout any given sample & a heterogeneous mixture has components in which proportions vary throughout the sample. They are both similar because they’re often referred to as solutions
I’m not 100% sure but I think it’s convection