Gemstones and Ores: Unearthed Treasures Quiz

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What is the purpose of ore processing?

Turning ore into coal

Separating ore minerals from unwanted materials (correct)

Crushing and grinding ore to increase its size

Melting ore to form iron ingot

Which method involves reducing the ore's size through crushing and grinding?

Comminution (correct)

Floatation

Heavy media separation

Magnetic separation

What is the main purpose of heavy media separation in ore processing?

Separating hydrophobic materials from hydrophilic materials

Extracting a desired substance using a solvent

Separating products with different densities (correct)

Mixing different types of ores together

What does magnetic separation use to counteract the effect of gravity on materials?

Magnetic field Signup and view all the answers

In which method does a solvent pass through a mixture to extract a desired substance?

Cyanide heap leaching Signup and view all the answers

What is the main difference between drift mining and slope mining?

Drift mining involves cutting into the side of the earth, while slope mining involves a sloping access shaft that travels downwards Signup and view all the answers

What are gemstones valued for?

Their sparkle, beauty, and contribution to jewelry, cosmetics, and medicine Signup and view all the answers

What are ores?

Rocks that contain valuable minerals like metals Signup and view all the answers

What is ore genesis?

The process by which a deposit of ore is created Signup and view all the answers

What are Volcanic Massive Sulfide (VMS) deposits?

Deposits rich in ore minerals found on the ocean floor Signup and view all the answers

What process occurs in the cooling tower in a hydroelectric power plant?

Steam is condensed back to water Signup and view all the answers

What does the transformer do in a hydroelectric power plant?

Increases the voltage of electricity (step-up) Signup and view all the answers

What is the main source of energy in hydroelectric power generation?

Flowing water Signup and view all the answers

Which of the following is an example of conventional natural gas?

Natural gas found in porous and permeable rock beds Signup and view all the answers

What is the primary difference between oil and natural gas?

Oil is a liquid fossil fuel, while natural gas is a gaseous fossil fuel Signup and view all the answers

What is the primary factor that determines whether natural gas is classified as conventional or unconventional?

The method used to extract the natural gas Signup and view all the answers

Which of the following is an example of a renewable energy source?

Geothermal heat Signup and view all the answers

What is the primary reason why renewable energy sources are considered sustainable?

They do not emit pollutants or greenhouse gases Signup and view all the answers

Which of the following is a characteristic of non-renewable energy sources?

They are finite and will eventually run out Signup and view all the answers

Which of the following waste management methods converts waste into energy?

Waste-to-Energy Signup and view all the answers

What is the primary purpose of landfills in waste management?

To provide a site for burying waste materials Signup and view all the answers

Which waste management method is specifically designed for handling hazardous waste?

Hazardous waste management Signup and view all the answers

What is the primary goal of education and awareness campaigns in waste management?

To encourage environmentally responsible behaviors Signup and view all the answers

Which waste management method produces nutrient-rich soil that can be used for gardening and landscaping?

Composting Signup and view all the answers