Answer:
Cellphones- it is used for many purposes like for studies and business
Machines- it is used to help for the work of people
Factories- used to make new things
Television - used for people for entertainment or watch news
Airconditions- for cooling a room
Radio- used for people to hear news
Refrigerator - used for cooling our foods and avoid it from rotting
Cctv- used to check what other people do in a certain place
Camera- used to capture pictures
Microphones/megaphones- used for example (police) making our voices louder
