The following words also appear in the texts and dialogues. Match each one with its correct definition: waste, noise, illness, smoke, unemployment
1. the number of people without work in a group or society;
2. used, damaged, or unwanted substance; 3. sound, especially unwanted or meaningless unmusical sound;
4. unhealthy state of the body or mind;
5. usually white, grey, or black gas produced by things burning.