Created by Zubayr C-137 Rashid
almost 7 years ago
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Question | Answer |
Unit 8.5 | Mineral Resources |
What are minerals? | Minerals are naturally occurring chemical substances that make up igneous, sedimentary and metamorphic rocks. |
What is an ore mineral? | An ore mineral contains metal or some other valuable material. Some ore minerals are pure elements. |
Name an example of a pure element. | Gold is one of the few elements that can be found in nature as a pure element. |
What is a metal found as a pure element also known as? | Native Metal |
Name two examples of native metals. | Two examples of native metals are silver and copper. |
What is Australia an important exporter of? | Titanium,Nickel,Copper,Tin & Silver |
When do prices of minerals increase? | The prices of minerals increase in demand from other countries, and prices fall if there is less demand for our minerals. |
How are most minerals formed? | Most minerals are formed by the processes of heat & pressure. |
What is the difference between stalagmites & stalactites? | Stalagmites rise from the floor while stalactites hang from the ceiling. |
What are hydrothermal fluids? | A superheated fluid that circulates through the Earth's Crust. |
What are mineral resources? | Minerals that are dug up and used are known as mineral resources. |
What are the three processes of obtaining minerals? | Mining, Processing & Rehabillation |
Mining | The resource is removed from the ground |
Processing | The unwanted materials are removed, and the wanted material is exracted. |
Rehabilation | After all mining and processing is completed, theming site is repaired. |
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