Comprehension
Study the given figure carefully and answer the questions that follow :
Question: 1
Mention the methods of mining given in the picture.
Mention the methods of mining given in the picture.
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Different methods of mining are used depending on the depth and type of mineral deposit—surface mining for shallow minerals and underground mining for deeper ones.
Updated On: Jan 14, 2026
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Solution and Explanation
The methods of mining shown in the picture are:
Open-cast Mining – Minerals are extracted by removing surface layers of soil and rock.
Shaft Mining – Deep vertical shafts are dug to reach minerals lying at great depths.
Open-cast Mining – Minerals are extracted by removing surface layers of soil and rock.
Shaft Mining – Deep vertical shafts are dug to reach minerals lying at great depths.
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Question: 2
Differentiate between the two methods of mining given in the picture.
Differentiate between the two methods of mining given in the picture.
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Open-cast mining is suitable for shallow deposits, while shaft mining is used when minerals are located deep inside the Earth.
Updated On: Jan 14, 2026
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Solution and Explanation
The two commonly depicted methods of mining are Open-cast Mining and Shaft Mining. Their differences are:
| Open-cast Mining | Shaft Mining |
|---|---|
| Used for extracting minerals that lie close to the surface. | Used for extracting minerals that lie deep below the surface. |
| Involves removal of surface layers to reach the mineral deposit. | Involves digging deep vertical shafts to access underground minerals. |
| Less expensive and less dangerous. | More expensive and riskier due to depth and safety concerns. |
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Question: 3
Which mining method is more life threatening?
Which mining method is more life threatening?
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Shaft mining is riskier than open-cast mining due to its depth, confined spaces, and hazardous working conditions.
Updated On: Jan 14, 2026
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Solution and Explanation
Shaft mining is more life-threatening because it involves digging deep underground shafts, which poses risks such as:
Possibility of tunnel collapse or cave-ins
Exposure to harmful gases and dust
Poor ventilation and lighting
Higher chances of fire, flooding, or accidents
Possibility of tunnel collapse or cave-ins
Exposure to harmful gases and dust
Poor ventilation and lighting
Higher chances of fire, flooding, or accidents
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