Answer:
Radiation is a method of heat transfer that does not rely upon any contact between the heat source and the heated object as is the case with conduction and convection. Heat can be transmitted through empty space by thermal radiation often called infrared radiation
Answer:
Sound waves transfer energy by the motion of particles
Explanation: guessing lol
Surfactants disrupt intermolecular forces inside liquids and viscosity is directly related to intermolecular forces so, if intermolecular forces are decreased, viscosity should decrease as well.