yes
Yes.
Dont know about silver but from one ton of cell phones you can get about $8000 in gold. Gold is used more than silver because it conducts electricity better. Each phone has a small amount. Dont know how many phones make up a ton though.
Gold can be used to make extremely thin wires, for use in highly miniaturized electronic circuitry. Cell phones contain a tiny amount of gold. Gold is widely used in dentistry, to make crowns for teeth.
Rugged cell phones are cell phones that are durable and can withstand accidents such as being dropped and handled roughly better than most normal cell phones can.
Cell phones use radio waves for communication.
Do you mean 'When were the first cell phones sold?' If so, the answer is in the mid 1980s.
Pay Phones
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They are used for stuff.
cell phones are mainly used for communicating such as txting, calling and etc...and for entertainment as well and also for emergencies
There are many more than two types of cell phones used worldwide.
form_title= Used Cell Phones form_header= Purchase a used cell phone. What type of cell phone do you want?*= _ [50] Do you have a service provider?*= () Yes () No Do you want a smart phone?*= () Yes () No