Gold is often used in the microprocessor of automatic cameras to make sure the connections do not fail. Gold is mined in underground or surface mines. The most gold is mined in South Africa, but Nevada is now the world's fourth largest gold producer. Film Plastic film, silver. Petrochemicals, silver ore.
Silver is usually a byproduct of copper and lead mining and gold recovery.
The silver compound forms the light sensitive part of the film. First aid kit Plastics, chemicals, cotton. Many of the ointments are disinfectants derived from petrochemicals in a petroleum jelly base. Sun block may contain zinc and titanium compounds. Inc. All Rights Reserved.