Describe two processes in which an external force is exerted on a system and no work is done on the system. Explain why no work is done

force tends to be low and long diustance masses are high

the answer is false. this is because for ice to melt, it requires latent heat of melting. latent heat means heat energy required to change phase without any increase in temperatures. therefore, the ice will take energy from the environment to melt hence atmospheric temperatures will reduce.