Explain any two uses of following
1) GOLD
2) SILVER
3)BIOGAS
4)GEOTHERMAL ENERGY
Answers
Answer:
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Explanation:
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Uses of geothermal energy
• Geothermal energy can heat, cool, and generate electricity: Geothermal energy can be used in different ways depending on the resource and technology chosen—heating and cooling buildings through geothermal heat pumps, generating electricity through geothermal power plants, and heating structures through direct-use ...
Uses of Gold
• Jewelry: The Primary Use of Gold. Gold has been used to make ornamental objects and jewelry for thousands of years. Gold nuggets found in a stream are very easy to work and were probably one of the first metals used by humans. Today, most of the gold that is newly mined or recycled is used in the manufacture of jewelry ...
Uses of silver
• It is used for jewellery and silver tableware, where appearance is important. Silver is used to make mirrors, as it is the best reflector of visible light known, although it does tarnish with time. It is also used in dental alloys, solder and brazing alloys, electrical contacts and batteries.
Uses of biogas
• Uses of Biogas
☆ It is commonly used in rural areas as cooking gas.
☆ It can be used for the production of electricity
.
☆It can be used in instruments used for water heating, space (room) heating etc.
☆ It can replace compressed natural gas for use in vehicles.
☆ It can displace carbon dioxide in on-site CHP plants