What type of energy does mechanical energy turn into when friction is acting

What is created when solids,liquids,an gases mix with one another

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.

Explain what happens at the saturation point when adding salt to water at room temperature.