GS One‑Liners
high‑yield facts · smart revision
5107
facts
5107
results
Latest facts first
| # | Question & Answer |
|---|---|
| 3001 |
What is the hardest mineral on the Mohs scale of hardness?
-
Diamond (10).
|
| 3002 |
What is the mechanical breakdown of rocks into smaller fragments?
-
Physical Weathering.
|
| 3003 |
What is the process of chemical alteration of rocks by water and oxygen?
-
Chemical Weathering.
|
| 3004 |
What is the term for the economically viable concentration of a metal or mineral?
-
Ore Deposit.
|
| 3005 |
What is the dense, naturally occurring hydrocarbon material found in oil sands?
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Bitumen.
|
| 3006 |
What is the term for non-metallic deposits found in layered sequences, such as gypsum and rock salt?
-
Evaporites.
|
| 3007 |
What is a primary social issue related to mining in developing countries?
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Displacement of local communities and health hazards.
|
| 3008 |
What are the three 'R's of sustainable resource management?
-
Reduce, Reuse, Recycle.
|
| 3009 |
What is the process of restoring land disturbed by mining back to a useful state?
-
Reclamation.
|
| 3010 |
What is the term for the acidic water that drains from mines and pollutes surface and groundwater?
-
Acid Mine Drainage (AMD).
|
| 3011 |
What is the main environmental consequence of open-pit mining?
-
Habitat destruction, soil erosion, and land degradation.
|
| 3012 |
What is a key characteristic of the Placer Deposit?
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Mineral-bearing sand and gravel accumulated by gravity (e.g., gold, tin).
|
| 3013 |
What is the main use of the mineral Manganese?
-
Manufacturing steel and ferro-manganese alloy.
|
| 3014 |
Which metal is primarily used in stainless steel and has its largest deposits in South Africa?
-
Chromium.
|
| 3015 |
What mineral is predominantly found in the beach sands of Kerala, India, and is a source of thorium?
-
Monazite Sand.
|
| 3016 |
What is the term for the process of converting coal into gaseous fuel?
-
Coal Gasification.
|
| 3017 |
What is the term for the process of converting coal into liquid hydrocarbons?
-
Coal Liquefaction.
|
| 3018 |
Which major global body controls the supply and price of crude oil?
-
OPEC (Organization of the Petroleum Exporting Countries).
|
| 3019 |
Which country is the world's largest producer of bauxite?
-
Australia.
|
| 3020 |
What is the leading region in the world for the production of copper?
-
Chile (or the Andean region).
|
| 3021 |
What is the largest single concentration of high-grade iron ore in the world?
-
Krivoi Rog (Ukraine) or Carajás (Brazil).
|
| 3022 |
What is the process of extracting metal from its ore using heat?
-
Smelting.
|
| 3023 |
What is the term for the separation of metallic minerals from the gangue by crushing and washing with water?
-
Beneficiation (or Ore Dressing).
|
| 3024 |
What is the low-grade, brown coal often used for power generation?
-
Lignite.
|
| 3025 |
Which type of coal is the most common for commercial use and is a "soft coal"?
-
Bituminous.
|